APW1173 Ver la hoja de datos (PDF) - Anpec Electronics

Número de pieza

componentes Descripción

Fabricante

APW1173

2A SWITCH STEP DOWN SWITCHING REGULATOR

Anpec Electronics 

APW1173

Electrical Characteristics (Cont.)

The * denotes the specifications that apply over TA = -40 ~ 85oC. Typical values are at TA = 25oC.

VCC = 12V unless otherwise specified.

Symbol

Parameter

Test condition

APW1173

Unit

Min Typ Max

Dynamic Characteristics

VFB

Voltage feedback

APW1173

1.22 1.235 1.25

4.8V < VCC < 22V, 20mA < IO <2A

V

* 1.198 1.235 1.272

η Efficiency

VO = 5V, VCC = 12V, IOUT = 1A

82

%

DC Characteristics

Iqop Total Operating Quiescent Current

*

12 mA

Iq Quiescent Current

Duty Cycle = 0; VFB = 1.5V

10 mA

VINH > 2.2V

Iqst-by Total Stand-by Quiescent Current

VCC = 22V; VINH > 2.2V

*

50 100 µA

*

80 150 µA

Inhibit

VINH INH Threshold Voltage

INH Pull-Up Current

Maximum INH Voltage

Error Amplifier

VOH High Level Output Voltage

VOL Low Level Output Voltage

IO source Source Output Current

IO sink Sink Output Current

IFB Source Bias Current

Maximum FB Voltage

gm Trans-conductance

SYNC Function

High Input Voltage

Low Input Voltage

Slave Sink Current

Master Output Amplitude

Output Pulse Width

Device ON

Device OFF

VINH < 3V

IINH = 0A

VFB = 1V

VFB = 1.5V

VCOMP = 1.9V; VFB = 1V

VCOMP = 1.9V; VFB = 1.5V

VFB = 1.5V

IFB = 0µA

VFB = 1.255V to 1.215V, ICOMP =

-0.1mA to 0.1mA VCOMP = 1.9V

VCC = 4.8 to 22V

VCC = 4.8V to 22V

VSYNC = 0.74V

VSYNC = 2.33V

ISOURCE = 3mA

No load, VSYNC =1.65V

1.1 1.3 1.5 V

1.2 1.4 1.6 V

1

µA

4.3

V

3.5 3.8

V

0.4 V

200 300

µA

1 1.5

mA

2.5 4 µA

2.1

V

2.3

mA/V

2.5

VREF V

0.74 V

0.11

0.25

mA

0.21

0.45

2.75 3

V

0.2 0.35

µs

Copyright © ANPEC Electronics Corp.

4

Rev. A.5 - Aug., 2005

www.anpec.com.tw

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