SC900A datasheet(4/23 Pages) SEMTECH

Part #	SC900A

Description	Programmable Penta ULDO with RESET and I2C Interface

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Manufacturer	SEMTECH [Semtech Corporation]

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POWER MANAGEMENT

SC900A

Electrical Characteristics (Cont.)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

LDO Regulator B (DIGITAL I/O SUPPLY) (Cont.)

Default Setting: ON

VO

B

2.80

mV

Line Regulation at 2.8V

LINEREG

B

I

OUT = 1mA, VOUT + 0.15V < VIN < 5.5V

2.5

12

mV

Load Regulation at 2.8V

LOADREG

B

1mA < I

OUT <150mA

-3

20

mV

Dropout Voltage

V

DB

V

OUT = 3.0V, IOUT = 150mA

150

190

mV

Power Supply Rejection Ratio

PSRR

B

f = 10Hz - 1kHz, C

BYP = 0.1μF,

I

OUT = 50mA,

2.5V ≤ V

OUT ≤ 3.0V

60

dB

Output Voltage Noise(2)

e

n-B

f = 10Hz - 100kHz, I

OUT = 50mA,

C

VREF = 0.1μF, COUT = 2.2μF,

2.5V ≤ V

OUT ≤ 3.0V

45

μV

RMS

LDO Regulator C

Output Voltage Accuracy

VOA

C

1.75V ≤ V

OUT ≤ 3.30V

V

OUT + 0.15V ≤ VIN ≤ 5.5V

I

OUT = 1mA, TA = 25°C

-3

+3

%

Output Voltage Accuracy at

2.90V (DAC = 10111)

VOAS

C

I

OUT = 1mA

-2

+2

%

V

OUT + 0.5V ≤ VIN ≤ 5.5V,

I

OUT = 150mA

-3.5

+3.5

%

Maximum Output Current

IOMAX

C

150

mA

Default Setting: ON

VO

C

2.90

V

Line Regulation at 2.90V

LINEREG

C

I

OUT = 1mA, VOUT + 0.15V < VIN < 5.5V

2.5

12

mV

Load Regulation at 2.90V

LOADREG

C

1mA < I

OUT <150mA

-3

-20

mV

Dropout Voltage

V

DC

V

OUT = 3.3V, IOUT = 150mA

150

190

mV

Power Supply Rejection Ratio

PSRR

C

f = 10Hz - 1kHz, C

BYP = 0.1μF,

I

OUT = 50mA,

2.5V ≤ V

OUT ≤ 3.3V

60

dB

Output Voltage Noise(2)

e

n-C

f = 10Hz - 100kHz, I

OUT = 50mA,

C

VREF = 0.1μF, COUT = 2.2μF,

2.5V ≤ V

OUT ≤ 3.3V

55

μV

RMS

LDO Regulator D

Output Voltage Accuracy

VOA

D

1.75V ≤ V

OUT ≤ 3.30V

V

OUT + 0.15V ≤ VIN ≤ 5.5V

I

OUT = 1mA, TA = 25°C

-3

+3

%

Output Voltage Accuracy at

3.10V (DAC = 10111)

VOAS

D

I

OUT = 1mA

-2

+2

%

V

OUT + 0.5V ≤ VIN ≤ 5.5V,

I

OUT = 150mA

-3.5

+3.5

%

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