SC1452 Просмотр технического описания (PDF) - Semtech Corporation

Номер в каталоге

Компоненты Описание

Список матч

SC1452

Dual 150mA LDO Regulator with Programmable Reset

Semtech Corporation 

SC1452

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = 25°C, VIN = VOUT + 1V, IOUTA = IOUTB = 1mA, CIN = COUT = 1.0 µF, VENA = VENB = VIN.

Values in bold apply over full operating temperature range.

Parameter

Symbol

Conditions

Dropout Voltage(1)(2)

VD

IOUT = 1mA

IOUT = 50mA

IOUT = 150mA

Current Limit

Ripple Rejection

Output Voltage Noise

ILIM

PSRR

en

BYP

Start-up Rise Time

ENA, ENB

Enable Input Threshold

Enable Input Bias Current(3)

RSTA, RSTB

Reset Threshold

tr

VIH

VIL

IENA/B

VTH(RST)

Reset A Delay

tRSTA

Reset B Delay

tRSTB

Reset A, B Output Voltage (4)

DLYB

Delay Voltage Threshold

Delay Source Current

VOH

VOL

VTH(DLYB)

IDLYB

f = 120Hz, CBYP = 10nF

f = 10Hz to 100kHz, IOUT = 50mA,

CBYP = 10nF, COUT = 2.2µF, 1.8V output

f = 10Hz to 100kHz, IOUT = 50mA,

CBYP = 10nF, COUT = 2.2µF, 3.3V output

CBYP = 10nF

0V ≤ VENA/B ≤ VIN

VOUT falling

VOUT rising

VDLYB= 0V

CDLYB= 10nF

ISOURCE= 0.5mA

ISINK= 1.2mA

VOUTB < VTH

Min Typ Max Units

1

mV

52

70

mV

90

155 210 mV

270

400

mA

59

dB

27

µVRMS

55

1.25

ms

1.6

V

0.4

-0.5

+0.5 µA

88

90

92

%VOUT

90

92

94

30

50

70

ms

90 150 210 ms

4

90

98

%VOUT

0.02 0.10

V

1.250

V

2.1 3.0 3.9

µA

 2006 Semtech Corp.

3

www.semtech.com

Share Link: