PM8903 datasheet(10/34 Pages) STMICROELECTRONICS

tên linh kiện	PM8903

Giải thích chi tiết về linh kiện	3 A step-down monolithic switching regulator

PDF	34 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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10 / 34 page

Electrical specifications

PM8903

10/34

Doc ID 022748 Rev 1

Over and undervoltage protections

OVP

OVP threshold

FB rising

0.69

0.72

0.75

LS turns off, FB falling

0.30

UVP

UVP threshold

FB falling

0.45

0.48

0.51

IFB

FB disconnection bias

current

Sourced from FB

100

Overtemperature protection

OTP

Thermal shutdown

threshold (1)

140

°C

Thermal shutdown

hysteresis (1)

°C

PGOOD

Upper threshold

FB rising

0.69

0.72

0.75

Lower threshold

FB falling

0.45

0.48

0.51

VPGOODL

PGOOD voltage low

IPGOOD = -4 mA

0.4

ENABLE

Input logic high

EN rising

1.5

Input logic low

EN falling

0.65

Hysteresis

150

Deglitching(1)

Rising and falling edge

μs

TSS

Soft-start time

RPM=0 Ω / 24 kΩ / 180 kΩ / 240 kΩ

or PSKIP/MS pin floating

0.79

Guaranteed by design, not subject to test.

Table 6.

Electrical characteristics (continued)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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