TPS56528器件规格书.pdf

TPS56528

www.ti.com.cn

ZHCSAZ6A –APRIL 2013–REVISED APRIL 2013

SW

1

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not English Data Sheet: SLVSBV3

necessarily include testing of all parameters.

TPS56528

ZHCSAZ6A –APRIL 2013–REVISED APRIL 2013

www.ti.com.cn

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

(1)

TPS56528DDAR Tape and Reel

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(3) All package options have Cu NIPDAU lead/ball finish.

(1)

SW –2 20

SW (10 ns transient) –3 22

VREG5 –0.3 6.5

Output voltage range V

GND –0.3 0.3

Voltage from GND to thermal pad, V

diff

–0.2 0.2 V

Human Body Model (HBM) 2 kV

Electrostatic discharge

Charged Device Model (CDM) 500 V

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

θ

JA

Junction-to-ambient thermal resistance 44.4

θ

Junction-to-case (top) thermal resistance 51.6

ψ

JB

Junction-to-board characterization parameter 27.7

θ

JCbot

Junction-to-case (bottom) thermal resistance 5.3

(1) 有关传统和新的热 度量的更多信息，请参阅IC

应用报告， SPRA953。

TPS56528

www.ti.com.cn

ZHCSAZ6A –APRIL 2013–REVISED APRIL 2013

V

IN

Supply input voltage range 4.5 18 V

VFB –0.1 5.5

SW –1.8 18

SW (10 ns transient) –3 21

GND –0.1 0.1

V

O

Output voltage range VREG5 –0.1 5.7 V

I

Output Current range I

T

A

Operating free-air temperature –40 85 °C

A

O

TPS56528

ZHCSAZ6A –APRIL 2013–REVISED APRIL 2013

www.ti.com.cn

t

Soft-start time Internal soft-start time 0.7 1.0 1.3 ms

VFB rising(good) 85% 90% 95%

VFB falling(Fault) 85%

IPG PG sink current PG=0.5V 2 4 mA

TPS56528

www.ti.com.cn

ZHCSAZ6A –APRIL 2013–REVISED APRIL 2013

EN 1 Enable input control. Active high and must be pulled up to enable the device.

VFB 2 Converter feedback input. Connect to output voltage with feedback resistor divider.

5.5 V power supply output. A capacitor (typical 0.47 µF) should be connected to GND. VREG5 is not

VREG5 3

active when EN is low.

PG 4 Open drain power good output.

Ground pin. Power ground return for switching circuit. Connect sensitive SS and VFB returns to GND at

GND 5

Exposed Thermal Thermal pad of the package. Must be soldered to achieve appropriate dissipation. Must be connected to

Back side

Pad GND.