参数资料
| 型号： | AP1533SG-13 |
| 厂商： | Diodes Inc |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1.8A 8SOIC |
| 产品变化通告： | Copper Bond Wire Change 13/Jan/2012 |
| 标准包装： | 3,000 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 23 V |
| 输入电压： | 4 V ~ 23 V |
| 频率 - 开关： | 300kHz |
| 电流 - 输出： | 1.8A |
| 同步整流器： | 无 |
| 工作温度： | -25°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 |
AP1533
PWM CONTROL 1.8A STEP-DOWN CONVERTER
Features
General Description
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Input voltage: 4V to 23V
Output voltage: 0.8V to V CC
Output current: 1.8A up to peak 2A
Duty ratio: 0% to 99% PWM control
Oscillation frequency: 300KHz typ.
Soft-start like, Current limit and Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOS
SOP-8L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
AP1533 consists of step-down switching regulator with PWM
control. These devices include a reference voltage source,
oscillation circuit, error amplifier, internal PMOS.
AP1533 provides low-ripple power, high efficiency, and 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 built in to minimum 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
SOP-8L mini-package, providing such outstanding features as low
current consumption. Since this converter can accommodate an
input voltage up to 23V, it is also suitable for the operation via an
AC adapter.
Applications
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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
Typical Application Circuit
+
V IN
C IN
R OCSET C OCSET
3.3K Option
Vcc
OCSET
AP1533
Output
FB
L1
33uH
C C
Optional
R A
6.8K
+
V OUT =5V/1.8A
C C OUT
-
470uF
CVcc
0.1uF
R EN
100K
C EN
0.1uF
EN
V SS
D1 *
R B
1.3K
-
0.1uF
470uF
V OUT = V FB x (1+ R A /R B )
R B = 0.7K~5K ohm
* Suggested DIODES Power Schottky P/N: B340 series or PDS340.
AP1533 Rev. 4
DS31192
1 of 9
www.diodes.com
JULY 2009
? Diodes Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AP1533SG-U | 制造商:Diodes Incorporated 功能描述: |
| AP1534 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:PWM CONTROL 2A STEP-DOWN CONVERTER |
| AP1534_09 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:PWM CONTROL 2A STEP-DOWN CONVERTER |
| AP1534S | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:PWM CONTROL 2A STEP-DOWN CONVERTER |
| AP1534SG-13 | 功能描述:开关变换器、稳压器与控制器 PWM CONTROL STEPDOWN CONVERTER RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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