SC900IMLTRT View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SC900IMLTRT

Programmable Penta ULDO with RESET and I2C Interface

Semtech Corporation 

SC900

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless otherwise noted: VIN = 3.7V, EN = VIN, TA = -40 to 85°C. Typical values are at TA = +25°C.

Parameters

Symbol

Conditions

Min Typ Max Units

Reference and Biasing Circuitry (cont.)

VREF Bypass Capacitor

LDO Regulators

CVREF

0.1

µF

Quiescent Supply Current

Quiescent Supply Current

at Start-up

Dropout Voltage

LDO B,C,D,E

LDO A

Current Limit

Power Supply Rejection Ratio

IQ

IQSUP

VD

ILIM

PSRR

Output Voltage Noise(2)

en

Bypass Capacitor

CBYP

LDO Regulator A (CORE SUPPLY)

All LDOs active in default states

LDO A, B, C active in default states

VOUT + 0.5V < VIN < 5.5V

VOUT = 3.0V, IOUT = 1mA

VOUT = 3.0V, IOUT= 50mA

VOUT = 3.0V, IOUT= 150mA

VOUT = 3.0V, IOUT = 200mA

f = 10Hz -1kHz, CBYP = 0.1µF,

IOUT = 50mA

2.5V < VOUT < 3.0V

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

CVREF = 0.1µF, COUT = 2.2µF

2.5V ≤ VOUT ≤ 3.0V

Ceramic, low ESR

190 360 µA

125

µA

1.1

50 64

150 190 mV

200 250

250 410 650 mA

60

dB

45

2.2

µVrms

µF

Output Voltage Accuracy

Output Voltage Accuracy at

2.80V (DAC=11011)

VOAA

1.45V ≤ VOUT ≤ 3.00V

VOUT+0.2V ≤ VIN ≤ 5.5V

-3

IOUT = 1mA, TA = 25OC

IOUT = 1mA

-2

+3

%

+2

%

Output Voltage Accuracy at

1.80V (DAC=00111)

VOASA

IOUT = 1mA, TA = 25OC

-3

+3

%

Output Voltage Accuracy at

2.80V (DAC=11011)

IOUT= 200mA, VOUT+0.5V ≤ VIN ≤ 5.5V -3.5

+3.5 %

Maximum Output Current

Default Setting: ON

Line Regulation at 1.8V, 2.8V

Load Regulation at 1.8V, 2.8V

IOMAXA

200

mA

VOA-HI

VASEL – High

2.80

V

VOA-LO

VASEL – Low

1.80

V

LINEREGA

IOUT = 1mA, VOUT+0.2V < VIN< 5.5V

2.5 12 mV

LOADREGA

1mA < IOUT < 200mA

-3 -20 mV

 2005 Semtech Corp.

3

www.semtech.com

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