L7292 datasheet(14/60 Pages) STMICROELECTRONICS

Part #	L7292

Description	Five buck regulators power management unit

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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14 / 60 page

Electrical characteristics

L7292

14/60

DocID028601 Rev 1

5.5

Voltage monitor and POR generator

Table 9. Voltage monitor and POR generator

Parameter

Conditions

Min.

Typ.

Max.

Unit

Undervoltage threshold

rising

SUP

Enable to regulators

softstart

2.75

2.8

2.9

Undervoltage threshold

falling

SUP

POR signal only

2.65

2.7

2.8

Undervoltage threshold

hysteresis

SUP

0.05

0.1

0.2

Undervoltage threshold

falling

BUCK1 ,2, 3, 4, 5

Vout - 15%(1)

Regulators disable

BUCK1, 2, 3, 4, 5

2.45

2.5

2.6

DLY1

POR rising delay

PORZ

2 ms step

programmability

-10%

8 - 10 - 12 - 14 -16

- 18 - 20 -22 - 24

+10%

POR low level output

voltage, VOL

PORZ

IOL = 1 mA

0.3

POR pull-up

Internal pull-up to

VBUS -30 °C to 125 °C

100

200

300



POR high level output

voltage, VOH

80 %

VBUS

POR low level output

voltage, VOL

20%

VBUS

1. Valid before POR signal enable.

L7292 Datasheet(PDF) 14 Page - STMicroelectronics

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