TPS657051, TPS657052

www.ti.com

SLVSA08A – FEBRUARY 2010 – REVISED SEPTEMBER 2015

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

Input voltage for step-down converter DCDC1 and DCDC2

3.3

6

V

Output current at L

400

mA

L

Inductor at L

1.5

2.2

4.7

µH

Input voltage for LDO

1.7

6.0

V

Output current at LDO

200

mA

4.7

µF

4.7

10

22

µF

2.2

µF

2.2

µF

Operating ambient temperature

–40

85

°C

Operating junction temperature

–40

125

°C

7.4 Thermal Information

TPS65705x

YZH (DSBGA)

UNIT

16 PINS

Junction-to-ambient thermal resistance

75

°C/W

Junction-to-case (top) thermal resistance

22

°C/W

Junction-to-board thermal resistance

26

°C/W

Junction-to-top characterization parameter

0.2

°C/W

Junction-to-board characterization parameter

24

°C/W

Junction-to-case (bottom) thermal resistance

N/A

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

7.5 Electrical Characteristics

to +85°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

MODE =0

40

µA

(PFM mode), LDO disabled

Operating quiescent current DCDCx

MODE =0

25

µA

(PFM mode), LDO disabled

4

mA

MODE =1 (forced PWM mode), LDO disabled

DCDC1 and DCDC2 disabled, LDO enabled.

Operating quiescent current LDO

25

37

µA

IOUT = 0 mA

Shutdown current

DCDC1, DCDC2, and LDO disable

5

12

µA

DIGITAL PINS (EN1, EN2, ENLDO, MODE)

High-level input voltage for EN1,

1.2

VCC

V

EN2, ENLDO, MODE

Low-level input voltage for EN1,

0.4

V

EN2, ENLDO, MODE

EN1, EN2, ENLDO, MODE tied to GND

Input leakage current

0.01

0.1

μA

STEP-DOWN CONVERTERS

Input voltage for DCDC1

3.3

6

V

Copyright © 2010–2015, Texas Instruments Incorporated

Submit Documentation Feedback

5

Product Folder Links: TPS657051 TPS657052