TPS54060

Manufacturer Part NumberTPS54060
ManufacturerTexas Instruments
TPS54060 datasheet
 


Specifications of TPS54060

Iout(max)(a)0.5Vin(min)(v)3.5
Vin(max)(v)60Vout(min)(v)0.8
Vout(max)(v)58Iq(typ)(ma)0.116
Switching Frequency(max)(khz)2500Switch Current Limit(typ)(a)0.6
TopologyBuck,Inverting Buck-BoostOperating Temperature Range(c)-40 to 150
Pin/package10MSOP-PowerPAD, 10SONDuty Cycle(max)(%)98
Regulated Outputs(#)1  
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SWIFT™ DC/DC CONVERTER WITH ECO-MODE™
FEATURES
1
3.5V to 60V Input Voltage Range
2
200-mΩ High-Side MOSFET
High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode™
116mA Operating Quiescent Current
1.3mA Shutdown Current
100kHz to 2.5MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
UV and OV Power Good Output
Adjustable UVLO Voltage and Hysteresis
DESCRIPTION
The TPS54060 device is a 60V, 0.5A, step down regulator with an integrated high side MOSFET. Current mode
control provides simple external compensation and flexible component selection. A low ripple pulse skip mode
reduces the no load, regulated output supply current to 116mA. Using the enable pin, shutdown supply current is
reduced to 1.3mA, when the enable pin is low.
Under voltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage
startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open
drain power good signal indicates the output is within 93% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold
back and thermal shutdown protects the part during an overload condition.
The TPS54060 is available in 10 pin thermally enhanced MSOP and 10 pin 3mm x 3mm SON PowerPad™
packages.
SIMPLIFIED SCHEMATIC
VIN
PWRGD
TPS54060
EN
BOOT
PH
SS /TR
RT /CLK
COMP
VSENSE
GND
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Eco-Mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
DGQ
DRC
0.5A, 60V STEP DOWN
Check for Samples:
TPS54060
0.8-V Internal Voltage Reference
MSOP10 and 3mm x 3mm SON Package With
PowerPAD™
Supported by SwitcherPro™ Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/s
witcherpro.html)
For SWIFT™ Documentation, See the TI
Website at
http://www.ti.com/swift
APPLICATIONS
12-V, 24-V and 48-V Industrial and Commercial
Low Power Systems
Aftermarket Auto Accessories: Video, GPS,
Entertainment
100
90
80
70
60
50
40
30
20
10
0
0
0.05
Copyright © 2009–2010, Texas Instruments Incorporated
TPS54060
SLVS919A – JANUARY 2009 – REVISED JULY 2010
EFFICIENCY
vs
LOAD CURRENT
V = 12 V,
I
V = 3.3 V,
O
f
= 500 kHz
sw
0.1 0.15
0.2
0.25 0.3
0.35
0.4
0.45
0.5
Load Current - A

TPS54060 Summary of contents

  • Page 1

    ... Adjustable UVLO Voltage and Hysteresis DESCRIPTION The TPS54060 device is a 60V, 0.5A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 116mA. Using the enable pin, shutdown supply current is reduced to 1 ...

  • Page 2

    ... For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. (2) The DGQ package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54060DGQR). ABSOLUTE MAXIMUM RATINGS Over operating temperature range (unless otherwise noted). ...

  • Page 3

    ... COMP –2 mA < I < COMP COMP 0.4 V VSENSE V = 0.8 V VSENSE 100 mV overdrive (COMP) Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 TPS54060 UNITS DRC (10 PINS) 62 56.5 1.7 0.6 20.1 7.5 °C 7 MIN TYP MAX UNIT 3 ...

  • Page 4

    ... VSENSE falling VSENSE rising VSENSE rising VSENSE falling VSENSE falling VSENSE = VREF, V(PWRGD) = 5.5 V, 25°C I(PWRGD mA, VSENSE < 0.79 V V(PWRGD) < 0.5 V, II(PWRGD) = 100 mA Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): TPS54060 www.ti.com MIN TYP MAX UNIT 0.6 0.94 A 182 ° ...

  • Page 5

    ... SLVS919A – JANUARY 2009 – REVISED JULY 2010 DEVICE INFORMATION DRC PACKAGE (TOP VIEW) BOOT GND VIN COMP 3 7 VSENSE SS/ RT/CLK 5 6 PWRGD PIN FUNCTIONS DESCRIPTION Product Folder Link(s): TPS54060 TPS54060 PH 10 GND 9 Thermal Pad COMP 8 (11) 7 VSENSE 6 PWRGD Submit Documentation Feedback 5 ...

  • Page 6

    ... Slope Compensation Frequency Shift Clamp Oscillator with PLL 5 RT/CLK Product Folder Link(s): TPS54060 www.ti.com VIN 2 Thermal UVLO Shutdown Shutdown Logic Boot Charge Boot Current UVLO Sense BOOT POWERPAD 11 GND 9 TPS54060 Block Diagram Copyright © 2009–2010, Texas Instruments Incorporated ...

  • Page 7

    ... SWITCHING FREQUENCY vs RT/CLK RESISTANCE LOW 500 25°C J 400 300 200 100 0 125 150 175 200 200 300 Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 I - 100 125 T - Junction Temperature - °C J Figure ...

  • Page 8

    ... SS/TR CHARGE CURRENT vs JUNCTION TEMPERATURE - -1.5 -2 -2.5 -3 150 100 125 -50 -25 Product Folder Link(s): TPS54060 www.ti.com 100 125 T - Junction Temperature - °C J Figure 8. = Threshold + 100 125 T - Junction Temperature - °C J Figure 10. ...

  • Page 9

    ... VIN SUPPLY CURRENT vs INPUT VOLTAGE 140 I(VSENSE) 130 120 110 100 100 125 150 Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 SWITCHING FREQUENCY vs VSENSE 0.2 0.4 0 SENSE Figure 14 Input Voltage - V I Figure 16 ...

  • Page 10

    ... V = 0.2 V (SS/TR -50 -25 600 700 800 Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): TPS54060 www.ti.com VSENSE Rising VSENSE Falling VSENSE Falling 100 125 150 T - Junction Temperature - °C J Figure 20 100 ...

  • Page 11

    ... The device has an internal phase lock loop (PLL) on the RT/CLK pin that is used to synchronize the power switch turn falling edge of an external system clock. The TPS54060 has a default start up voltage of approximately 2.5V. The EN pin has an internal pull-up current source that can be used to adjust the input voltage under voltage lockout (UVLO) threshold with two external resistors ...

  • Page 12

    ... The TPS54060 operates in a pulse skip Eco mode at light load currents to improve efficiency by reducing switching and gate drive losses. The TPS54060 is designed so that if the output voltage is within regulation and the peak switch current at the end of any switching cycle is below the pulse skipping current threshold, the device enters Eco mode ...

  • Page 13

    ... A ceramic capacitor with an X7R or X5R grade dielectric with a voltage rating of 10V or higher is recommended because of the stable characteristics overtemperature and voltage. To improve drop out, the TPS54060 is designed to operate at 100% duty cycle as long as the BOOT to PH pin voltage is greater than 2.1V. When the voltage from BOOT to PH drops below 2.1V, the high side MOSFET is turned off using an UVLO circuit which allows the low side diode to conduct and refresh the charge on the BOOT capacitor ...

  • Page 14

    ... Figure 26. 3.3V Start/Stop Voltage Error Amplifier The TPS54060 has a transconductance amplifier for the error amplifier. The error amplifier compares the VSENSE voltage to the lower of the SS/TR pin voltage or the internal 0.8V voltage reference. The transconductance (gm) of the error amplifier is 97mA/V during normal operation. During the slow start operation, the transconductance is a fraction of the normal operating gm ...

  • Page 15

    ... V Enable and Adjusting Undervoltage Lockout The TPS54060 is disabled when the VIN pin voltage falls below 2 application requires a higher undervoltage lockout (UVLO), use the EN pin as shown in the two external resistors. Though it is not necessary to use the UVLO adjust registers, for operation it is highly recommended to provide consistent power up behavior ...

  • Page 16

    ... OUT I + HYS R3 V ENA START ENA ENA Submit Documentation Feedback TPS54060 VIN Ihys VOUT R3 Figure 29. Adding Additional Hysteresis Product Folder Link(s): TPS54060 www.ti.com Copyright © 2009–2010, Texas Instruments Incorporated (4) (5) ...

  • Page 17

    ... Css(nF) = Vref (V) 0.8 ´ At power up, the TPS54060 will not start switching until the slow start pin is discharged to less than ensure a proper power up, see Figure Also, during normal operation, the TPS54060 will stop switching and the SS/TR must be discharged to 40 mV, when the VIN UVLO is exceeded, EN pin pulled below 1.25V thermal shutdown event occurs. ...

  • Page 18

    ... The sequential method can be implemented using an open drain output of a power on reset pin of another device. The sequential method is illustrated in coupled to the EN pin on the TPS54060 which will enable the second power supply once the primary supply reaches regulation. If needed, a 1nF ceramic capacitor on the EN pin of the second power supply will provide a 1ms start up delay ...

  • Page 19

    ... Equation 9 is the voltage difference between Vout1 and Vout2 Equation 7 through Equation 9 is greater than the value calculated in Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 VOUT 1 VOUT 2 R3 for deltaV. Equation 9 will result in a Equation 10 ...

  • Page 20

    ... Figure 36. Ratio-metric Startup with Tracking Resistors Figure 38. Simultaneous Startup With Tracking Resistor 20 Submit Documentation Feedback deltaV VOUT1 VOUT2 Figure 37. Ratiometric Startup with Tracking EN VOUT1 VOUT2 Product Folder Link(s): TPS54060 www.ti.com EN VOUT1 VOUT2 Resistors Copyright © 2009–2010, Texas Instruments Incorporated (7) (8) (9) (10) ...

  • Page 21

    ... Figure 39. High Range RT Overcurrent Protection and Frequency Shift The TPS54060 implements current mode control which uses the COMP pin voltage to turn off the high side MOSFET on a cycle by cycle basis. Each cycle the switch current and COMP pin voltage are compared, when the peak switch current intersects the COMP voltage, the high side switch is turned off ...

  • Page 22

    ... Rdc V Vd OUT ÷ ) ÷ - ´ Rhs Vd ø L ö + Vd) ÷ ) ÷ ø Shift Skip Input Voltage - V I Product Folder Link(s): TPS54060 www.ti.com Equation 3 Copyright © 2009–2010, Texas Instruments Incorporated and (12) (13) ...

  • Page 23

    ... Copyright © 2009–2010, Texas Instruments Incorporated and Figure 45 show the device synchronized to an external system TPS54060 PLL R fset RT/CLK EXT 50 W Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 Figure 42 through a 50Ω resistor to Submit Documentation Feedback 23 ...

  • Page 24

    ... Also, the PWRGD is pulled low, if the UVLO or thermal shutdown are asserted or the EN pin pulled low. 24 Submit Documentation Feedback PH EXT Figure 44. Plot of Synchronizing in dcm PH EXT IL Figure 45. Plot of Synchronizing in PSM Product Folder Link(s): TPS54060 www.ti.com IL Copyright © 2009–2010, Texas Instruments Incorporated ...

  • Page 25

    ... SS/TR pin. Small Signal Model for Loop Response Figure 46 shows an equivalent model for the TPS54060 control loop which can be modeled in a circuit simulation program to check frequency response and dynamic load response. The error amplifier is a transconductance amplifier with mA/V. The error amplifier can be modeled using an ideal voltage controlled current EA source ...

  • Page 26

    ... OUT ESR Small Signal Model for Frequency Compensation The TPS54060 uses a transconductance amplifier for the error amplifier and readily supports three of the commonly-used frequency compensation circuits. Compensation circuits Type 2A, Type 2B, and Type 1 are shown in Figure 48. Type 2 circuits most likely implemented in high bandwidth power-supply designs using low ESR output capacitors ...

  • Page 27

    ... Copyright © 2009–2010, Texas Instruments Incorporated are provided as a reference for those who prefer to compensate using the Type COMP Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 Type 2B Type Submit Documentation Feedback 27 ...

  • Page 28

    ... ( ´ ´ Submit Documentation Feedback ö ÷ ø ö s ÷ p ´ ø P2 type 2a O type 2b type 1 Product Folder Link(s): TPS54060 www.ti.com Copyright © 2009–2010, Texas Instruments Incorporated (18) (19) (20) (21) (22) (23) (24) (25) (26) (27) ...

  • Page 29

    ... Figure 50. High Frequency, 3.3V Output Power Supply Design with Adjusted UVLO. Copyright © 2009–2010, Texas Instruments Incorporated APPLICATION INFORMATION 3.3 V ΔVout = 4% 0 nom. 12V Vout 8 130 ns for the TPS54060. For this example, the output voltage is 3.3 V Equation 13 Equation 11 shown in Figure 50. 3 Product Folder Link(s): TPS54060 TPS54060 SLVS919A – ...

  • Page 30

    ... For this Vout Vinmax ƒsw ´ OUT ö ´ Vinmax - V OUT ÷ ÷ ´ ´ ø Product Folder Link(s): TPS54060 www.ti.com = 0.3 may be used. IND Copyright © 2009–2010, Texas Instruments Incorporated (28) (29) (30) (31) ...

  • Page 31

    ... I oripple yields 1mF. Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 shows the minimum output capacitance 51. The output capacitor must also be Equation 33 is the output under light load the ...

  • Page 32

    ... Vin max Input Capacitor The TPS54060 requires a high quality ceramic, type X5R or X7R, input decoupling capacitor of at least effective capacitance and in some applications a bulk capacitance. The effective capacitance includes any dc bias effects. The voltage rating of the input capacitor must be greater than the maximum input voltage. The capacitor must also have a ripple current rating greater than the maximum input current ripple of the TPS54060 ...

  • Page 33

    ... The large currents necessary to charge the capacitor may make the TPS54060 reach the current limit or excessive current draw from the input power supply may cause the input voltage rail to sag. Limiting the output voltage slew rate solves both of these problems. ...

  • Page 34

    ... The Under Voltage Lock Out (UVLO) can be adjusted using an external voltage divider on the EN pin of the TPS54060. The UVLO has two thresholds, one for power up when the input voltage is rising and one for power down or brown outs when the input voltage is falling. For the example design, the supply should turn on and start switching once the input voltage increases above 8 ...

  • Page 35

    ... Equation 48 to calculate the C8, to set the compensation pole. Figure 54. Output Ripple, DCM Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 Figure 52. Startup With VIN Submit Documentation Feedback (45) (46) (47) (48) 35 ...

  • Page 36

    ... Figure 58. Efficiency vs Load Current Vin = 12 V Vin = -20 - 3.3 V OUT -60 0.08 0.10 100 Figure 60. Overall Loop Frequency Response Product Folder Link(s): TPS54060 www.ti.com 3.3 V OUT 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0. Output Current - A O Phase ...

  • Page 37

    ... Figure 61. Regulation vs Load Current Copyright © 2009–2010, Texas Instruments Incorporated 0 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0 0.35 0.4 0.45 0.5 Figure 62. Regulation vs Input Voltage Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 Input Voltage - V I Submit Documentation Feedback 37 ...

  • Page 38

    ... There will be additional power losses in the regulator circuit due to the inductor ac and dc losses, the catch diode and trace resistance that will impact the overall efficiency of the regulator. 38 Submit Documentation Feedback - 9 10 ´ Product Folder Link(s): TPS54060 www.ti.com Copyright © 2009–2010, Texas Instruments Incorporated (49) (50) (51) (52) (53) (54) ...

  • Page 39

    ... BOOT PH VIN GND EN COMP SS/TR VSENSE PWRGD RT/CLK Frequency Set Resistor Figure 63. PCB Layout Example Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 Output Inductor Catch Diode Compensation Resistor Network Divider Thermal VIA Signal VIA 2 Figure 50 is 0.55 in ...

  • Page 40

    ... VIN BOOT Lo R1 GND R2 TPS54060 VSENSE EN COMP SS/TR Rcomp RT/CLK Czero Cpole Css RT SLVA369 REVISION HISTORY Product Folder Link(s): TPS54060 www.ti.com GND + Co VOUT Application Note VOPOS + Copos GND + Coneg VONEG Application Note Copyright © 2009–2010, Texas Instruments Incorporated Page ...

  • Page 41

    ... TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. OTHER QUALIFIED VERSIONS OF TPS54060 : Pins ...

  • Page 42

    ... Automotive: TPS54060-Q1 NOTE: Qualified Version Definitions: • Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects PACKAGE OPTION ADDENDUM Addendum-Page 2 9-Feb-2012 ...

  • Page 43

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS54060DGQR MSOP- DGQ Power PAD TPS54060DRCR SON DRC TPS54060DRCT SON DRC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 10 2500 330.0 12.4 5.3 10 3000 330.0 12 ...

  • Page 44

    ... Device Package Type TPS54060DGQR MSOP-PowerPAD TPS54060DRCR SON TPS54060DRCT SON PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGQ 10 2500 DRC 10 3000 DRC 10 250 Pack Materials-Page 2 13-Jul-2011 Width (mm) Height (mm) 364.0 364.0 27.0 346.0 346.0 35.0 203.0 203.0 35.0 ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...