TPS6521825_V01 datasheet(10/109 Pages) TI1

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TPS6521825

SLDS260 – NOVEMBER 2019

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Specifications

4.5

Electrical Characteristics

Over operating free-air temperature range (unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

INPUT VOLTAGE AND CURRENTS

VIN_BIAS

Input supply voltage range

Normal operation

2.7

5.5

EEPROM programming

4.5

5.5

Deglitch time

IOFF

OFF state current, total current

into IN_BIAS, IN_DCDCx,

IN_LDO1, IN_LS

VIN = 3.6 V; All rails disabled.

TJ = 0°C to 85°C

µA

ISUSPEND

SUSPEND current, total current

into IN_BIAS, IN_DCDCx,

IN_LDO1, IN_LS

VIN = 3.6 V; DCDC3 enabled, low-power mode, no

load.

All other rails disabled.

TJ = 0°C to 105°C

220

µA

SYS_BU

VSYS_BU

SYS_BU voltage range

Powered from VIN_BU or VCC

2.2

5.5

CSYS_BU

Recommended SYS_BU

capacitor

Ceramic, X5R or X7R, see Table 6-3.

µF

Tolerance

Ceramic, X5R or X7R, rated voltage

≥ 6.3 V

–20%

20%

INT_LDO

VINT_LDO

Output voltage

2.5

DC accuracy

IOUT < 10 mA

–2%

IOUT

Output current range

Maximum allowable external load

ILIMIT

Short circuit current limit

Output shorted to GND

tHOLD

Hold-up time

Measured from VINT_LDO = to VINT_LDO = 1.8 V

All rails enabled before power off,

IN_BIAS tied to IN_DCDC1-4, IN_LDO1

VIN_BIAS = 2.8 V to 0 V in < 5 µs

No external load on INT_LDO

CINT_LDO = 1 µF, see Table 6-3.

150

COUT

Nominal output capacitor value

Ceramic, X5R or X7R, see Table 6-3.

0.1

µF

Tolerance

Ceramic, X5R or X7R, rated voltage

≥ 6.3 V

–20%

20%

DCDC1 (1.1-V BUCK)

VIN_DCDC1

Input voltage range

VIN_BIAS > VUVLO

5.5

VDCDC1

Output voltage range

Adjustable through I2C

0.85

1.675

DC accuracy

2.7 V

≤ VIN ≤ 5.5 V; 0 A ≤ IOUT ≤ 1.8 A

–2%

IOUT

Continuous output current

VIN_DCDC1 > 2.7 V

1.8

Quiescent current

Total current from IN_DCDC1 pin; Device not

switching, no load

µA

RDS(ON)

High-side FET on resistance

VIN_DCDC1 = 3.6 V

230

355

mΩ

Low-side FET on resistance

VIN_DCDC1 = 3.6 V

145

ILIMIT

High-side current limit

VIN_DCDC1 = 3.6 V

2.8

Low-side current limit

VIN_DCDC1 = 3.6 V

3.1

VPG

Power-good threshold

VOUT falling

STRICT = 0b

88.5%

90%

91.5%

STRICT = 1b

96%

96.5%

97%

Hysteresis

VOUT rising

STRICT = 0b

3.8%

4.1%

4.4%

STRICT = 1b

0.25%

Deglitch

VOUT falling

STRICT = 0b

STRICT = 1b

µs

VOUT rising

STRICT = 0b

µs

STRICT = 1b

µs

Time-out

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