STPMIC25 datasheet(14/145 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

tSDLDO-BP

Shutdown duration

Pull-down enabled, VLDOOUT from 3.6 V to 0.2 V,

ILDOOUT = no load

1.5

1. If LDO is in bypass mode and 50 or 100 mA is set in the NVM, then 200 mA is used

3.4.5

LDO8

Table 11. . Electrical and timing parameter specifications (LDO8)

Symbol

Parameter

Test conditions

Min.

Typ.

Max. Unit

LDO8 normal mode

VLDOIN

Main input voltage range

2.8

5.5

VLDOOUT

Output voltage

VLDOIN > VLDOOUT + VLDODROP, programmable value

0.9 to

4.0

Voltage programming step

100

VLDOOUT-ACC Output voltage accuracy

VLDOIN = 3.6 V or 5.0 V, 0.9 V < VLDOOUT < 3.3 V

100 µA < ILDOOUT < 150 mA

-2

ILDOLIM

Output current limitation

2.8 V < VLDOIN < 5.5 V

150

200

350

ILDO78Q

Total quiescent current

ILDOOUT = 0 mA

Measured from the related common input pin, LDO78IN

µA

ILDO78IN_LKG Input leakage current

LDO output disable, Tj = +25 °C

Measured from the related common input pin, LDO78IN

VLDODROP

Dropout voltage

VLDOOUT = 2.9 V, ILDOOUT = 150 mA

160

300

VLDOOUT-LO Load transient regulation

ILDOOUT = 1 to 75 mA, tR = tF = 1 µs

VLDOOUT-LI

Line transient regulation

VLDOIN = 3.0 V to 3.6 V, tR = tF = 10 μs

PSRRLDO

Power supply rejection

ratio

ΔVLDOIN = 300 mVPP, f = [0.1:20] kHz, Tj = 25 °C, ILDOOUT = 75 mA

ΔVLDOIN = 300 mVPP, f = [20:100] kHz, T j = 25 °C, ILDOOUT = 75 mA

tSSLDO

Soft-start duration

2.8 V < VLDOIN < 5.5 V, 0 < ILDOOUT < 1 mA, COUT = 4.7 µF,

VOUT = 1.8 V

160

µs

VLDOOUT-SO Startup overshoot

2.8 V < VLDOIN < 5.5 V, 0.9 V < VLDOOUT < 3.3 V ILDOOUT < 10 µA

tSDLDO

Shutdown duration

Pull-down enabled, VLDOOUT = 3.3 V to VLDOOUT = 0.2 V

ILDOOUT = no load

1.5

LDO8 bypass mode

VLDOIN-BP

Main input voltage range

2.8

5.5

RDSONLDO-BP Bypass on resistance

VLDOIN = 2.8 V to 5.5 V

600

mΩ

ILDOLIM-BP

Output current limitation

Note: use the same value as in normal mode

150

tSSLDO-BP

Soft-start duration

2.8 V < VLDOIN < 5.5 V, 0 < ILDOOUT < 1 mA, COUT = 4.7 µF

ILDOLIM = 400 mA

120

µs

tSDLDO-BP

Shutdown duration

Pull-down enabled, VLDOOUT = 3.6 V to VLDOOUT = 0.2 V

ILDOOUT = no load

1.5

STPMIC25

Electrical and timing characteristics

DS14278 - Rev 3

page 14/145

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