APW7322A Просмотр технического описания (PDF) - Anpec Electronics

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APW7322A

2A, 5V, 1MHz Synchronous Buck Converter

Anpec Electronics 

APW7322/A

Recommended Operating Conditions (Note 4)

Symbol

Parameter

Range

Unit

VCC VCC Supply Voltage

VIN

VIN Supply Voltage

VOUT Converter Output Voltage

L

Inductance

COUT Output Capacitor

IOUT Converter Output Current

TA

Ambient Temperature

TJ

Junction Temperature

Note 4: Refer to the typical application circuit.

2.9~ 6

V

2.6~6

V

0.8~6

V

1~4.7

µH

10~220

µF

0~2

A

-40 ~ 85

oC

-40 ~ 125

oC

Electrical Characteristics

Unless otherwise specified, these specifications apply over VCC=VIN=5V, VOUT=3.3V and TA=-40~85oC. Typical values

are at T =25oC.

A

Symbol

Parameter

Test Conditions

SUPPLY CURRENT

IVCC VCC Supply Current

IVCC_SDH VCC Shutdown Supply Current

POWER-ON-RESET (POR)

VCC POR Voltage Threshold

VCC POR Voltage Hysteresis

VCC Debounce Time

VIN POR Voltage Threshold

VIN POR Voltage Hysteresis

REFERENCE VOLTAGE

VFB=0.7V

EN=GND

VCC Rising

VCC Falling

VIN Rising

VIN Falling

VREF Reference Voltage

Output Accuracy

OSCILLATOR and DUTY CYCLE

FOSC Oscillator Frequency

Maximum Converter’s Duty

Minimum on Time

POWER MOSFET

High Side P-MOSFET Resistance

Low Side N-MOSFET Resistance

All temperature

IOUT=10mA~3A, VCC=2.9~5V

VFB=0.7V

VCC=VIN=5V, ILX=0.5A, TA=25oC

VCC=VIN=5V, ILX=0.5A, TA=25 oC

APW7322/A

Unit

Min.

Typ.

Max.

-

460

-

µA

-

-

40

µA

-

2.7

-

V

-

200

-

mV

-

10

-

µs

-

2.3

-

V

-

50

-

mV

-

0.8

-

V

-1

-

+1

%

-1.5

-

+1.5

%

0.85

1

1.15

MHz

-

100

-

%

-

70

-

ns

-

85

115

mΩ

-

75

105

mΩ

Copyright © ANPEC Electronics Corp.

3

Rev. A.6 - Aug., 2013

www.anpec.com.tw

Free Datasheet http://www.datasheetlist.com/

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