参数资料
| 型号： | AP1534SG-13 |
| 厂商： | Diodes Inc |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 2A 8SOIC |
| 产品变化通告： | Wire Change 18/June/2008 Copper Bond Wire Change 13/Jan/2012 |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 18 V |
| 输入电压： | 3.6 V ~ 18 V |
| 频率 - 开关： | 300kHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOP |
AP1534
PWM CONTROL 2A STEP-DOWN CONVERTER
Description
AP1534 consists of step-down switching regulator with PWM
control. These devices include a reference voltage source,
oscillation circuit, error amplifier, internal PMOS.
Pin Assignments
(Top View)
AP1534 provides low-ripple power, high efficiency, and
FB 1
8 V SS
excellent transient characteristics. The PWM control circuit is
able to vary the duty ratio linearly from 0 up to 99%. This
converter also contains an error amplifier circuit as well as a
soft-start circuit that prevents overshoot at startup. An
enable function, an over current protect function and a short
circuit protect function are built inside, and when OCP or
SCP happens, the operation frequency will be reduced from
300KHz to 50KHz. Also, an internal compensation block is
EN 2
OCSET 3
V CC 4
AP1534
SO-8
7 V SS
6 Output
5 Output
built in to minimize external component count.
With the addition of an internal P-channel Power MOS, a
coil, capacitors, and a diode connected externally, these ICs
can function as step-down switching regulators. They serve
as ideal power supply units for portable devices when
coupled with the SO-8 mini-packages, providing such
outstanding features as low current consumption. Since this
converter can accommodate an input voltage up to 18V, it is
also suitable for the operation via an AC adapter.
Features
Applications
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Input voltage: 3.6V to 18V
Output voltage: 0.8V to V CC
Duty ratio: 0% to 99% PWM control
Oscillation frequency: 300KHz typical
Current limit, Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOS
SO-8: Available in “Green” Molding Compound
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PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Microprocessor Core Supply
(No Br, Sb)
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Lead Free Finish/RoHS Compliant (Note 1)
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
Typical Application Circuit
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V IN
Vcc
Output
22uH
L1
V OUT =5V/2A
C IN
R OCSET C OCSET
5.6K Option
OCSET
AP1534
FB
C C
Optional
R A
6.8K
+
C
+
C OUT
-
470uF
CVcc
0.1uF
R EN
100K
C EN
0.1uF
EN
V SS
D1
B240A
(Note 2)
R B
1.3K
-
0.1uF
470uF
Note: V OUT = V FB x (1+R A /R B )
R B = 0.7K~5K Ω
Notes:
2. Suggested DIODES Power Schottky P/N: B240/B340 series.
AP1534
Document number: DS31314 Rev. 6 - 2
1 of 9
April 2011
? Diodes Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AP1534SG-U | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:PWM CONTROL 2A STEP-DOWN CONVERTER |
| AP1537 | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:PWM Control 3A Step-Down Converter |
| AP1537S | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:PWM Control 3A Step-Down Converter |
| AP1537SA | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:PWM Control 3A Step-Down Converter |
| AP1538 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:18V 3A 300KHz BUCK CONVERTER |
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