ST1PS03 datasheet(7/25 Pages) STMICROELECTRONICS

Part #	ST1PS03

Description	400 mA nano-quiescent synchronous step-down converter with digital voltage selection, Power Good and load switch

PDF	25 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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7 / 25 page

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

ILIM

High-side MOSFET switch

current limit

3.6 V ≤ VIN ≤ 5.5 V

500

1150 mA

Power Good output (PGOOD)

VPG_TH

Power Good threshold voltage

Rising output voltage on VOUT pin, referred to VOUT

selected (D0, D1, D2)

97.5

VPG_TH_Hy

Hysteresis

-4

-3.5

-2.5

VOL

Low level output voltage

1.8 V ≤ VIN ≤ 5.5 V, EN = GND, current into PGOOD

pin, IPGOOD = 4 mA

0.23

Auxiliary output (VOUT_AUX)

RAUX

High-side Mosfet on-

resistance

IOUT_AUX = 100 mA, AUX = VIN

VIN_AUX = 2 V

0.6

0.8

ROUTDIS_AUX

Low-side Mosfet on-resistance

(discharger)

IOUT_AUX = -10 mA, AUX = GND

tr_aux

Vaux rise time

VIN = 3.6 V

VIN_AUX = 1.8V, AUX low to high transition, time to

ramp VOUT_AUX from 0 to 95% of VIN_AUX

400

850

µs

LKAUX

Leakage from VIN_AUX(1)

VIN = VIN_AUX = 3.3 V, AUX = GND

0.3

1. Specified by design – not tested in production.

Table 7. Output voltage settings

Device

VOUT

ST1PS03

1.8 V

3.3 V

2.8 V

2.7 V

3.0 V

2.1 V

1.6 V

2.5 V

ST1PS03

Electrical characteristics

DS13801 - Rev 1

page 7/25

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