Copyright

© ANPEC Electronics Corp.

Rev. A.6 - Nov., 2010

APW7142

www.anpec.com.tw

3

Symbol

Parameter

Range

Unit

VIN Supply Voltage

4.3 ~ 14

V

Converter Output Voltage

V

Converter Output Current

0 ~ 3

A

Converter Input Capacitor (MLCC)

8 ~ 50

µF

Converter Output Capacitor

20 ~ 1000

µF

Effective Series Resistance

0 ~ 60

m

Ω

Converter Output Inductor

1 ~ 22

µH

Resistance of the Feedback Resistor connected from FB to GND

1 ~ 20

k

Ω

Ambient Temperature

-40 ~ 85

Junction Temperature

-40 ~ 125

Note 3: Refer to the Typical Application Circuits

Electrical Characteristics

APW7142

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

SUPPLY CURRENT

VIN Supply Current

-

0.5

1.5

mA

VIN Shutdown Supply Current

-

-

3

µA

POWER-ON-RESET (POR) VOLTAGE THRESHOLD

VIN POR Voltage Threshold

3.9

4.1

4.3

V

VIN POR Hysteresis

-

0.5

-

V

REFERENCE VOLTAGE

Reference Voltage

Regulated on FB pin

-

0.8

-

V

-1.0

-

+1.0

Output Voltage Accuracy

-2.0

-

+2.0

%

Line Regulation

-

+0.02

-

%/V

Load Regulation

-

-0.04

-

%/A

OSCILLATOR AND DUTY CYCLE

Oscillator Frequency

450

500

550

kHz

Foldback Frequency

-

80

-

kHz

Maximum Converter’s Duty

-

99

-

%

Minimum Pulse Width of LX

-

150

-

ns

CURRENT-MODE PWM CONVERTER

Gm

-

200

-

µA/V

Error Amplifier DC Gain

COMP = NC

-

80

-

dB

Refer to the typical application circuits. These specifications apply over V

specified. Typical values are at T