SC1154 Просмотр технического описания (PDF) - Semtech Corporation

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SC1154

Programmable Synchronous DC/DC Hysteretic Controller for Advanced Processors

Semtech Corporation 

SC1154

POWER MANAGEMENT

Absolute Maximum Ratings

Parameter

VIN12V

BOOT to DRVGND

BOOT to BOOTLO

BOOTLO tp DRVGND

VIDS, INHIB, LODRV, PWRGD, OCP, DROOP

AGND to DRVGND

LOHIB to AGND

LOSENSE to AGND

IOTLO to AGND

HISENSE to AGND

VSENSE to AGND

Continuous Power Dissipation, TA = 25 0C

Continuous Power Dissipation, TC = 25 0C

Operating Junction Temperature Range

Lead Temperature (Soldering) 10 Sec.

Storage Temperature

DC Electrical Characteristics

Unless specified: 0 < TJ < 125°C, VIN = 12V

Parameter

Symbol

Symbol

VINMAX

PD

PD

TJ

TL

TSTG

Maximum

-0.3 to 14

-0.3 to 25

-0.3 to 15

-0.5 to 18

-0.5 to 7.3

±0.5

-0.3 to 14

-0.3 to 14

-0.3 to 14

-0.3 to 14

-0.3 to 5

1.2

6.25

0 to +125

300

-65 to 150

PRELIMINARY

Units

V

V

V

V

V

V

V

V

V

V

V

W

W

°C

°C

°C

Conditions

Min Typ Max Units

Supply Voltage Range

VIN12V

11.4 12

13

V

Supply Current (Quiescent)

High Side Driver Supply

Current (Quiescent)

IINq

IBOOTq

INH = 5V, VID not 11111, Vin above UVLO

threshold during start-up,

fsw = 200 kHz, BOOTLO = 0V,

C = C = 50pF

DH

DL

INH = OV or VID = 11111 or Vin below

UVLO threshold during start-up,

BOOT = 13V, BOOTLO = OV

INH = 5V, VID not 11111, VIN above UVLO

threshold during start-up, fsw = 200kHz,

BOOT = 13V, BOOTLO = 0V,

CDH = 50pF

15

mA

10

µA

5

mA

 2001 Semtech Corp.

2

www.semtech.com

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