参数资料
型号: AP1501A-33K5L-13
厂商: Diodes/Zetex
文件页数: 1/14页
文件大小: 0K
描述: IC REG BUCK 3.3V 5A TO263-5L
标准包装: 800
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 4.5 V ~ 40 V
PWM 型: 电压模式
频率 - 开关: 150kHz
电流 - 输出: 5A
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-263-6,D²Pak(5 引线+接片),TO-263BA
包装: 带卷 (TR)
供应商设备封装: TO-263-5
AP1501A
150KHz, 5A PWM BUCK DC/DC CONVERTER
Features
General Description
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Output voltage: 3.3V, 5V, 12V and adjustable output
version
Adjustable version output voltage range, 1.23V to
37V+4%
150Khz +15% fixed switching frequency
Voltage mode non-synchronous PWM control
Thermal-shutdown and current-limit protection
ON/OFF shutdown control input
Operating voltage can be up to 40V
Output load current: 5A
Low power standby mode
Built-in switching transistor on chip
Lead Free packages: TO263-5L and TO220-5L(R)
TO263-5L and TO220-5L(R): Available in “Green”
Molding Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
The AP1501A series are monolithic ICs that are designed for a
step-down DC/DC converter, and possess the ability to drive a
5A load without additional transistor component. Due to reducing
the number of external component, the board space can be
saved easily. The external shutdown function can be controlled
by logic level and then come into standby mode. The internal
compensation makes feedback control have good line and load
regulation without external design. Regarding protected function,
thermal shutdown is to prevent over temperature operating from
damage, and current limit is against over current operating of the
output switch. The AP1501A series operates at a switching
frequency of 150Khz thus allowing smaller sized filter
components than what would be needed with lower frequency
switching regulators. Other features include a guaranteed
+4% tolerance on output voltage under specified input voltage
and output load conditions, and +15% on the oscillator frequency.
The output version includes fixed 3.3V, 5V, 12V, and an
adjustable type. The packages are available in a standard 5-lead
TO263 and TO220 packages.
Applications
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Simple High-efficiency step-down regulator
On-card switching regulators
Positive to negative converter
Typical Application Circuit
(1) Fixed Type Circuit
FB
12V
DC Input
Vin
1
4
AP1501A
-33
2
Output
L1
18uH
Inductor
3.3V/5A
Output Load
5
3
Cin
Capacitor
AP1501A Rev. 10
DS31191
SD
Gnd
1 of 14
D1
Schottky
Diode
Co
Capacitor
SEPTEMBER 2009
? Diodes Incorporated
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