IC SYNC BUCK PWM SWTCHR 28HTSSOP

TPS54010PWP

Manufacturer Part NumberTPS54010PWP
DescriptionIC SYNC BUCK PWM SWTCHR 28HTSSOP
ManufacturerTexas Instruments
SeriesSWIFT™
TypeStep-Down (Buck)
TPS54010PWP datasheet
 


Specifications of TPS54010PWP

Internal Switch(s)YesSynchronous RectifierYes
Number Of Outputs1Voltage - Output0.9 ~ 2.5 V
Current - Output14AFrequency - Switching700kHz
Voltage - Input3 ~ 4 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
Power - Output6.94WTopologyBuck
Output Voltage2.5 VOutput Current14 A
Input Voltage4 VDuty Cycle (max)90 %
Switching Frequency700 KHzMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTMinimum Operating Temperature- 40 C
For Use With296-17269 - EVALUATION MODULE FOR TPS54010Lead Free Status / RoHS StatusLead free / RoHS Compliant
Other names296-17288-5  
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2.2 – 4 -V, 14-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER
FEATURES
Separate Low-Voltage Power Bus
8-m
MOSFET Switches for High Efficiency at
14-A Continuous Output
Adjustable Output Voltage Down to 0.9 V
Externally Compensated With 1% Internal
Reference Accuracy
Fast Transient Response
Wide PWM Frequency: Adjustable 280 kHz to
700 kHz
Load Protected by Peak Current Limit and
Thermal Shutdown
Integrated Solution Reduces Board Area and
Total Cost
SWIFT Documentation, Application Notes, and
Design Software:
www.ti.com/swift
APPLICATIONS
Low-Voltage, High-Density Systems With
Power Distributed at 2.5 V, 3.3 V Available
Point of Load Regulation for High-
Performance DSPs, FPGAs, ASICs, and
Microprocessors
Broadband, Networking, and Optical
Communications Infrastructure
SIMPLIFIED SCHEMATIC
2.5 V or 3.3 V
Input1
PVIN
TPS54010
350 mF
BOOT
PGND
3.3 V
Input2
VIN
COMP
1 mF
VBIAS
VSENSE
AGND
1 mF
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.
SWIFT, PowerPAD are trademarks of Texas Instruments.
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.
Typical Size
6,4 mm X 9,7 mm
WITH INTEGRATED FETs (SWIFT™)
DESCRIPTION
As a member of the SWIFT™ family of dc/dc regu-
lators, the TPS54010 low-input voltage, high-output
current synchronous buck PWM converter integrates
all required active components. Included on the
substrate with the listed features are a true, high-
performance, voltage error amplifier that enables
maximum performance under transient conditions
and flexibility in choosing the output filter L and C
components; an undervoltage-lockout circuit to pre-
vent start-up until the VIN input voltage reaches 3 V;
an internally and externally set slowstart circuit to limit
in-rush currents; and a power-good output useful for
processor/logic reset, fault signaling, and supply se-
quencing.
The TPS54010 is available in a thermally enhanced
28-pin TSSOP (PWP) PowerPAD™ package, which
eliminates bulky heatsinks.
0.68 mH
PH
Output
0.047 mF
0.1 mF
200 mF
120 pF
4.64 kW
10 kW
3300 pF
422 W
14.7 kW
1500 pF
Compensation
Network
TPS54010
SLVS509B – MAY 2004 – REVISED JUNE 2005
EFFICIENCY
vs
OUTPUT CURRENT
100
95
90
85
80
75
70
65
VIN = 3.3 V,
PVIN = 2.5 V,
60
V
= 1.5 V,
O
55
f
= 700 kHz
s
50
0
2
4
6
8
10
12
14
16
I
− Output Current − A
O
Copyright © 2004–2005, Texas Instruments Incorporated

TPS54010PWP 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. SWIFT, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty ...

  • Page 2

    ... A -40°C to 85°C Adjustible down to 0.9 V (1) The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54010PWPR). See the application section of the data sheet for PowerPAD drawing and layout information. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) ...

  • Page 3

    ELECTRICAL CHARACTERISTICS T = -40°C to 125°C, VIN = PVIN = 2 (unless otherwise noted) J PARAMETER SUPPLY VOLTAGE, VIN V Input voltage, VIN I Supply voltage range, PVIN VIN ...

  • Page 4

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 ELECTRICAL CHARACTERISTICS (continued -40°C to 125°C, VIN = PVIN = 2 (unless otherwise noted) J PARAMETER ERROR AMPLIFIER Error amplifier ...

  • Page 5

    PIN NAME PIN NUMBER DESCRIPTION Analog ground. Return for compensation network/output divider, slow-start capacitor, VBIAS capacitor, and AGND 1 RT resistor. If using the PowerPAD, connect it to AGND. See the Application Information section for details. Bootstrap output. 0.022-µF ...

  • Page 6

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 VIN Enable Comparator SS/ENA Falling Edge 1.2 V Deglitch Hysteresis: 0.03 V 2.5 s VIN UVLO Comparator Falling and VIN Rising 2.95 V Edge Hysteresis: 0.11 V Deglitch 2.5 s Internal/External ...

  • Page 7

    DRAIN-SOURCE ON-STATE RESISTANCE vs JUNCTION TEMPERATURE 12 VIN = 3.6 V, PVIN = 2 125 −40 − 100 T − Junction Temperature ...

  • Page 8

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 PCB LAYOUT COMPENSATION NETWORK VOUT OUTPUT INDUCTOR OUTPUT FILTER CAPACITOR The PVIN pins are connected together on the printed- circuit board (PCB) and bypassed with a low ESR ceramic bypass capacitor. ...

  • Page 9

    Connect the bias capacitor from the VBIAS pin to analog ground using the isolated analog ground trace slow-start capacitor or RT resistor is used ...

  • Page 10

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 Figure 12. Application Circuit, 2 1.5 V Figure 12 shows the schematic for a typical TPS54010 application. The TPS54010 can provide up ...

  • Page 11

    DESIGN PARAMETER EXAMPLE VALUE Operating frequency SWITCHING FREQUENCY The switching frequency can be set to either one of two internally programmed frequencies or set to a externally programmed frequency. With the RT pin open, setting the SYNC pin ...

  • Page 12

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 V OUT L(PK) OUT(MAX) 1.6 V IN(MAX) For this design, the RMS inductor current is 15.4 A, and the peak inductor current is 15.1 A. For this ...

  • Page 13

    The general procedure outlined here produces results consistent with these requirements without going into great detail about the theory of loop compensation. First, ...

  • Page 14

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 AGND. The value should be 1.0 µF. Both capacitors should be high-quality ceramic types with X7R or X5R grade dielectric for temperature stability. They should be placed as close to the ...

  • Page 15

    14.7 k Figure 14. 1.5-V Power Supply With Remote Sense With an output current the load is located far from the dc/dc converter circuit, it may ...

  • Page 16

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 330 0.047 14.7 k Figure 15. 2 1.5 V Power Supply with Charge Pump If a suitable 3-V to 4-V source ...

  • Page 17

    The performance data for Figure 16 V, VIN = 3 1 700 kHz, and MEASURED LOOP RESPONSE vs FREQUENCY 60 180 Phase 40 120 20 60 Gain 0 0 -20 ...

  • Page 18

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 The performance data for Figure 25 V, VIN = 3 1 700 kHz, and FREE-AIR TEMPERATURE vs MAXIMUM OUTPUT CURRENT 125 V ...

  • Page 19

    PERFORMANCE GRAPHS (continued) OUTPUT VOLTAGE RIPPLE mV/div (ac coupled) O(RIPPLE V/div O (PH ) Time = 500 nsec/div Figure 31. DETAILED DESCRIPTION OPERATING WITH SEPARATE PVIN The TPS54010 is ...

  • Page 20

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 100 k VIN 10 k PVIN + VBIAS − 1/2 LM293 27.4 k Figure 35. Undervoltage Lockout Circuit for PVIN Using Open-Collector or Open-Drain Comparator PVIN and VIN can ...

  • Page 21

    External loading on VBIAS is allowed, with the caution that internal circuits require a minimum VBIAS of 2.7 V, and external loads on VBIAS with ac or digital-switching noise may degrade performance. The VBIAS pin may be useful as ...

  • Page 22

    TPS54010 SLVS509B – MAY 2004 – REVISED JUNE 2005 DEAD-TIME CONTROL AND MOSFET DRIVERS Adaptive dead-time control prevents shoot-through current from flowing in both N-channel power MOSFETs during the switching transitions by actively controlling the turn-on times of the MOSFET ...

  • Page 23

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  • Page 24

    ... TPS54010PWP ACTIVE TPS54010PWPG4 ACTIVE TPS54010PWPR ACTIVE TPS54010PWPRG4 ACTIVE (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 25

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS54010PWPR HTSSOP PWP PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 28 2000 330.0 16.4 6.9 Pack Materials-Page 1 18-May-2010 Pin1 (mm) (mm) (mm) (mm) Quadrant 10.2 1.8 12 ...

  • Page 26

    ... Device Package Type TPS54010PWPR HTSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) PWP 28 2000 Pack Materials-Page 2 18-May-2010 Width (mm) Height (mm) 346.0 346.0 33.0 ...

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  • Page 29

    ... 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’ ...