TPS54060DRCT

Manufacturer Part NumberTPS54060DRCT
DescriptionIC DC-DC CONV STP-DN BUCK 10SON
ManufacturerTexas Instruments
SeriesSWIFT™, Eco-Mode™
TypeStep-Down (Buck)
TPS54060DRCT datasheets
 


Specifications of TPS54060DRCT

Internal Switch(s)YesSynchronous RectifierNo
Number Of Outputs1Voltage - Output0.8 ~ 58 V
Current - Output500mAFrequency - Switching100kHz ~ 2.5MHz
Voltage - Input3.5 ~ 60 VOperating Temperature-40°C ~ 150°C
Mounting TypeSurface MountPackage / Case10-SON
Lead Free Status / RoHS StatusLead free / RoHS CompliantPower - Output-
Other names296-27671-2  
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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

TPS54060DRCT Summary of contents

  • Page 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. ...

  • Page 2

    ... TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications ...

  • Page 3

    ... Error amplifier transconductance (g during slow start Error amplifier dc gain Error amplifier bandwidth Error amplifier source/sink COMP to switch current transconductance Copyright © 2009–2010, Texas Instruments Incorporated (1) (2) DGQ (10 PINS) (3) TEST CONDITIONS No voltage hysteresis, rising and falling 25°C, 3.5 V ≤ VIN ≤ VSENSE = 0.83 V, VIN = 12 V, 25° ...

  • Page 4

    ... VSENSE = 0 V 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 ...

  • Page 5

    ... VIN 2 I Input supply voltage, 3 VSENSE 7 I Inverting node of the transconductance ( gm) error amplifier. Copyright © 2009–2010, Texas Instruments Incorporated SLVS919A – JANUARY 2009 – REVISED JULY 2010 DEVICE INFORMATION DRC PACKAGE (TOP VIEW) BOOT ...

  • Page 6

    ... PWM Latch 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 HIGH FREQUENCY RANGE 2500 2000 1500 1000 500 100 RT/CLK - Resistance - kW Figure 5. Copyright © 2009–2010, Texas Instruments Incorporated TYPICAL CHARACTERISTICS VOLTAGE REFERENCE vs JUNCTION TEMPERATURE 0.816 0.808 0.800 0.792 0.784 -50 75 100 125 150 SWITCHING FREQUENCY vs JUNCTION TEMPERATURE ...

  • Page 8

    ... 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 10 100 125 T - Junction Temperature - °C J Figure 12. Copyright © 2009–2010, Texas Instruments Incorporated 150 150 150 ...

  • Page 9

    ... T - Junction Temperature - °C J Figure 15. VIN SUPPLY CURRENT vs JUNCTION TEMPERATURE 140 0.83 V I(VSENSE) 130 120 110 100 90 -50 - Junction Temperature - °C J Figure 17. Copyright © 2009–2010, Texas Instruments Incorporated 100 25° 100 125 150 0 SHUTDOWN SUPPLY CURRENT vs INPUT VOLTAGE ( 25°C 1.5 1 0.5 0 100 ...

  • Page 10

    ... SS/TR TO VSENSE OFFSET vs TEMPERATURE 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 20 100 125 150 T - Junction Temperature - ° ...

  • Page 11

    ... The overload recovery circuit will slow start the output from the fault voltage to the nominal regulation voltage once a fault condition is removed. A frequency foldback circuit reduces the switching frequency during startup and overcurrent fault conditions to help control the inductor current. Copyright © 2009–2010, Texas Instruments Incorporated SLVS919A – JANUARY 2009 – REVISED JULY 2010 OVERVIEW ...

  • Page 12

    ... PLL remains operating when in sleep mode. When operating at light load currents in the pulse skip mode, the switching transitions occur synchronously with the external clock signal. 12 Submit Documentation Feedback DETAILED DESCRIPTION Figure 25), then the peak switch current starts to decrease, Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): TPS54060 www.ti.com ...

  • Page 13

    ... MOSFET can remain on for 100% of the duty cycle to maintain output regulation, until the BOOT to PH voltage falls below 2.1V. Copyright © 2009–2010, Texas Instruments Incorporated VOUT (ac) ...

  • Page 14

    ... Submit Documentation Feedback 5 3 5.4 5.2 5 4.8 4.6 0.15 0.20 0 Figure 27. 5.0V Start/Stop Voltage Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): TPS54060 www.ti.com Figure 26 and Figure Start Stop 0.05 0.10 0.15 0. Output Current - ...

  • Page 15

    ... Another technique to add input voltage hysteresis is shown in resistance values are high from the previous method and a wider voltage hysteresis is needed. The resistor R3 sources additional hysteresis current into the EN pin. Copyright © 2009–2010, Texas Instruments Incorporated Figure 28 to adjust the input voltage UVLO by using to set the external hysteresis for the input voltage ...

  • Page 16

    ... SLVS919A – JANUARY 2009 – REVISED JULY 2010 DETAILED DESCRIPTION (continued START STOP 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

    ... When the fault condition is removed, the output will slow start from the fault voltage to nominal output voltage. Copyright © 2009–2010, Texas Instruments Incorporated ) is 2mA. The slow start capacitor should SS 30 ...

  • Page 18

    ... EN1 SS /TR PWRGD Figure 32. Sequential Startup using EN and EN1, EN2 Figure 34. Ratio-Metric Startup using Coupled Equation 6. Figure 34 shows the results of Product Folder Link(s): TPS54060 www.ti.com PWRGD1 VOUT1 VOUT2 PWRGD VOUT1 VOUT2 SS/TR pins Figure 33. Copyright © 2009–2010, Texas Instruments Incorporated ...

  • Page 19

    ... The SS/TR pin voltage needs to be greater than 1.3V for a complete handoff to the internal voltage reference as shown in Figure 23. Copyright © 2009–2010, Texas Instruments Incorporated TPS54060 EN SS/TR PWRGD ...

  • 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

    ... The frequency shift effectively increases the off time allowing the current to ramp down. Copyright © 2009–2010, Texas Instruments Incorporated Figure 39 or Figure 40 ...

  • 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

    ... Figure 43, Figure 44 clock in continuous conduction mode (ccm) discontinuous conduction (dcm) and pulse skip mode (psm). Clock Source Figure 42. Synchronizing to a System Clock Copyright © 2009–2010, Texas Instruments Incorporated and Figure 45 show the device synchronized to an external system TPS54060 PLL ...

  • 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

    ... This equivalent model is only valid for continuous conduction mode designs. COMP Figure 46. Small Signal Model for Loop Response Copyright © 2009–2010, Texas Instruments Incorporated model the open loop gain and frequency response of the amplifier. The o PH Power Stage gm 1.9 A/V ps VSENSE 0 ...

  • Page 26

    ... OUT Equation 18 and Equation 19 show how to relate the frequency response of Figure 48. The open-loop gain and bandwidth are modeled using the R Product Folder Link(s): TPS54060 www.ti.com Figure 46) is the power stage Equation 15. fz Copyright © 2009–2010, Texas Instruments Incorporated (14) (15) (16) (17) O ...

  • Page 27

    ... VSENSE Vref R2 Figure 48. Types of Frequency Compensation Aol A0 A1 Figure 49. Frequency Response of the Type 2A and Type 2B Frequency Compensation Copyright © 2009–2010, Texas Instruments Incorporated are provided as a reference for those who prefer to compensate using the Type COMP ...

  • 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

    ... Choosing the lower of the two values and adding some margin a switching frequency of 500kHz is used. To determine the timing resistance for a given switching frequency, use The switching frequency is set by resistor R 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% ...

  • 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

    ... Cout > ´ ´ ¦ sw ORIPPLE I RIPPLE Copyright © 2009–2010, Texas Instruments Incorporated Equation 32 Figure OL Equation 33 is the maximum allowable output voltage ripple, and I oripple yields 1mF. Product Folder Link(s): TPS54060 TPS54060 SLVS919A – JANUARY 2009 – REVISED JULY 2010 shows the minimum output capacitance 51 ...

  • Page 32

    ... Submit Documentation Feedback - Vout) sw ´ ¦ Equation 37 Equation 37, the selected diode will dissipate 0.297 ( Cj ´ ƒsw ´ Vin + Vƒd ´ Vƒ Equation 38. Product Folder Link(s): TPS54060 www.ti.com is used to calculate the total power 2 ) Equation Copyright © 2009–2010, Texas Instruments Incorporated (35) (36) (37) 39. ...

  • Page 33

    ... Bootstrap Capacitor Selection A 0.1-mF ceramic capacitor must be connected between the BOOT and PH pins for proper operation recommended to use a ceramic capacitor with X5R or better grade dielectric. The capacitor should have a 10V or higher voltage rating. Copyright © 2009–2010, Texas Instruments Incorporated ( ) Vin min ...

  • Page 34

    ... Assume the power stage transconductance, Product Folder Link(s): TPS54060 www.ti.com calculated as 31.25 kΩ. The Equation 41 and Equation 44, to estimate a Equation 43 yields 21.9 kHz and for an initial crossover frequency. Equation 46 yields 3600pF for Copyright © 2009–2010, Texas Instruments Incorporated and (41) (42) (43) (44) ...

  • Page 35

    ... With an input voltage of 34V, the power supply enters discontinuous mode when the output current is less than 60mA. The power supply enters EcoMode when the output current is lower than 38mA. The input current draw at no load is 228mA. APPLICATION CURVES Figure 51. Load Transient Figure 53. Output Ripple CCM Copyright © 2009–2010, Texas Instruments Incorporated ö V out ÷ ´ ...

  • Page 36

    ... 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 Gain 1-10 1-10 1-10 1- Frequency - Hz Copyright © 2009–2010, Texas Instruments Incorporated 0.50 150 100 50 0 -50 -100 -150 6 ...

  • Page 37

    ... I 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.1 0.00 0.25 0.1 0.15 0.2 0.25 0.3 Load Current - A 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 ...

  • 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) (55) ...

  • Page 39

    ... Vin UVLO Adjust Resistors Slow Start Capacitor Estimated Circuit Area The estimated printed circuit board area for the components used in the design of does not include test points or connectors. Copyright © 2009–2010, Texas Instruments Incorporated Vout Output Capacitor BOOT PH VIN GND EN ...

  • Page 40

    ... Cboot PH 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

    ... TPS54060DGQR ACTIVE MSOP- PowerPAD TPS54060DRCR ACTIVE SON TPS54060DRCT ACTIVE SON (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. ...

  • 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 6-Jan-2011 ...

  • Page 43

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS54060DGQR MSOP- DGQ Power PAD TPS54060DGQR MSOP- DGQ Power PAD PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 10 2500 ...

  • Page 44

    Device Package Type TPS54060DGQR MSOP-PowerPAD TPS54060DGQR MSOP-PowerPAD PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGQ 10 2500 DGQ 10 2500 Pack Materials-Page 2 5-Jan-2011 Width (mm) Height (mm) 346.0 346.0 35.0 364.0 364.0 ...

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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’ ...