SC1175TSTRT Просмотр технического описания (PDF) - Semtech Corporation

Номер в каталоге

Компоненты Описание

производитель

SC1175TSTRT

Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry

Semtech Corporation 

SC1175

POWER MANAGEMENT

Absolute Maximum Rating

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters

specified in the Electrical Characteristics section is not implied.

Parameter

Symbol

Limits

Units

VCC to GND

PGND to GND

VIN

-0.3 to 15

V

±1

V

BST to GND

-0.3 to 26

V

Thermal Resistance Junction to Case

Thermal Resistance Junction to Ambient

Operating Ambient Temperature Range

Operating Junction Temperature Range

Storage Temperature Range

Lead Temperature (Soldering) 10 sec

θJC

θJA

TA

TJ

TSTG

TLEAD

30

90

0 to 85

0 to 125

-65 to +150

300

°C/W

°C/W

°C

°C

°C

°C

Electrical Characteristics

Unless Specified: VCC = 4.75 to 5.25V, GND = PGND = 0V, FB = VO, 0mV < (CS(+) - CS(-)) < 60mV , TJ = 25°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output Voltage

Supply Voltage

Supply Current

Reference

Load Regulation

Reference Line Regulation

Output Line Regulation

Gain (AOL)

Current Limit Voltage

Oscillator Frequency

Oscillator Max Duty Cycle

DH Sink Current

DH Sink Current

DH Source Current

DH Source Current

IO = 2A(1), VOUT set to 2.75V

VCC

VCC = 5.0

IO = 0.3A to 15A (1)

5V < VCC < 15V

5V < VIN < 15V

VOSENSE to VO

DH - PGND = 3.5V

DH - PGND = 1.75V

BSTH - DH = 5.0V

BSTH - DH = 2.5V

2.65 2.75 2.85

V

4.2

15

V

10

mA

1.2375 1.25 1.2625

V

1

%

.5

%

.5

%

35

dB

60

70

80

mV

270 300 330

kHz

90

95

%

1

A

.5

A

1

A

.5

A

 2004 Semtech Corp.

3

www.semtech.com

Share Link: