SC2453ITSTR(2002) 데이터 시트보기 (PDF) - Semtech Corporation

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SC2453ITSTR
(Rev.:2002)

High Performance Quad Output Switching Regulator

Semtech Corporation 

SC2453

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Parameter

Test Conditions

Positive Linear Regulator

Feedback Voltage

Feedback Input Leakage Current

Amplifier Transconductance

Drive Sink Current

VFB4 = 0.5V, IB04 = 0.5 to 5mA (sink)

Negative Linear Regulator

Feedback Voltage

Feedback Input Leakage Current

Amplifier Trandconductance

Driver Source Current

VFB3 = 0V, IFB3 = 0.5 to 5mA (source)

Error Amplifier

Feedback Voltage

Input Bias Current

Input Offset Voltage

Open Loop Gain

Unity Gain Bandwidth

Output Sink Current

Output Source Current

Slew Rate

Oscillator

Frequency Range

Frequency

CT Peak Voltage

RT = TBD

CT Valley Voltage

SYNC Input High Pulse Width

SYNC Rise/Fall Time

SYNC Frequency Range

SYNC High/Low Threshold

Min

0.49

-25

0.49

90

100

540

100

FOSC

PRELIMINARY

Typ

Max

Unit

0.5

0.51

V

µA

-2

mV

5

mA

0

25

mV

µA

-1.5

mV

5

mA

0.5

0.51

V

200

nA

5

mV

dB

3

MHz

2

mA

2

mA

1

V/µS

700

KHz

600

660

KHz

3.0

V

0.1

V

nS

50

nS

FOSC kHz

±10%

1.5

V

 2002 Semtech Corp.

3

www.semtech.com

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