ST1PS02 datasheet(7/23 Pages) STMICROELECTRONICS

Part #	ST1PS02

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

PDF	23 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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7 / 23 page

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

ILIMSS

High-side MOSFET switch

current limit during soft-start

Reduced switch current limit during soft-start period

(typ. 400 µs)

200 280

360

Power Good output (PGOOD)

Vthpg-

Power Good threshold voltage

Rising output voltage on VOUT pin, referred to VOUT

selected (D0, D1, D2)

97.5

VthpgH

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 (Vout2)

RAUX

High-side MOSFET on-

resistance

ILoad=100 mA, Aux=VIN

0.6

0.8

Rdisc2

Low-side MOSFET on-resistance

(discharger)

ILoad=100 mA, Aux=GND

tr_aux

Vaux rise time

Starting with AUX low-to-high transition, time to ramp

VLOAD from 0 V to 95% VOUT = 1.8 V,

2.2 V ≤ VIN ≤ 5.5 V, ILOAD = 1 mA

315

600

µs

ST1PS02

Electrical characteristics

DS13206 - Rev 1

page 7/23

ST1PS02 Datasheet(PDF) 7 Page - STMicroelectronics

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