AP1520SA

更新时间： 2024-02-22 20:16:36

品牌	Logo	应用领域
易亨 - ANACHIP		转换器
页数	文件大小	规格书
7页	194K
描述
PWM Control 2A Step-Down Converter

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中文翻译

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数据手册

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AP1520SA 数据手册

This Anachip version datasheet is replaced

with Diodes Inc. datasheet AP1520

AP1520

PWM Control 2A Step-Down Converter

Electrical Characteristics (VIN = 12V, T_a=25°C, unless otherwise specified)

Symbol

Parameter

Input Voltage

Conditions

Min.

Typ.

Max. Unit

V_IN

3.6

0.784

0.816

0.5

V_FBFeedback Voltage

I_OUT=0.1A

0.8

0.1

I_FB

Feedback Bias Current

Switch Current

µA

I_SW

2.5

Current Consumption

During Power off

I_SSS

V_EN=0V

µA

∆V_OUT

/V_OUT

∆V_OUT

/V_OUT

Line Regulation

V_IN= 5V~23V

Load Regulation

I_OUT=0.1 to 2A

0.2

300

0.5

360

f_OSCOscillation Frequency

Measure waveform at SW pin

240

KHz

Frequency of Current Limit

f_OSC1

or Short Circuit Protect

V_SH

Evaluate oscillation at SW pin

2.0

0.8

EN Pin Input Voltage

V_SL

Evaluate oscillation stop at SW pin

I_SH

I_SL

EN Pin Input Leakage

Current

-10

µA

I_OCSETOCSET Pin Bias Current

0.3

105

T_SS

Soft-Start Time

V_IN=5V, V_FB=0V

V_IN=12V, V_FB=0V

110

150

100

R_DSONInternal MOSFET Rdson

mΩ

_IN= 12V, V_OUT= 5V

EFFI Efficiency

_OUT= 2A

Thermal Resistance

θ_JA

^oC/W

Junction-to-Ambient

Typical Application Circuit

Vcc

V_IN

V_OUT

Output

22uH

R_A

R_OCSETC_OCSET

C_C

Optional

6.8K

AP1520

Option

C_IN

OCSET

C_OUT

0.1uF 470uF

680uF

V_SS

R_EN

R_B

1.3K

CVcc

100K

0.1uF

C_EN

0.1uF

Note: V_OUT= V_FBx (1+R_A/R_B)

R_B=0.7K~5K ohm

V_IN=12V, I_MAX=2A

V_OUT

2.5V

3.3V

27uH

33uH

L1 Value

22uH

Anachip Corp.

www.anachip.com.tw

Rev. 1.5 Apr 10, 2006

3/7

1 234 5 6 7

中文翻译

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