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參數(shù)資料
| 型號： | AP1623 |
| 英文描述： | Diodes, Zener; Zener Voltage Typ, Vz:12V; Vz Test Current, Izt:20mA; Power Dissipation, Pd:500mW; Package/Case:41-MiniDIP; Leaded Process Compatible:Yes; Mounting Type:Surface Mount; Peak Reflow Compatible (260 C):Yes |
| 中文描述： | PWM控制降壓型開關(guān)穩(wěn)壓器，轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 182K |
| 代理商： | AP1623 |
AP1623
PWM Control Step-Down Switching Regulator-Converter
Features
- Low current consumption:
In operation: 60μA max.
Power off: 0.5μA max.
- Input voltage: 2.5V to 16V.
- Output voltage: 1.8V & Adjustable to 6V.
- Duty ratio: 0% to 100% PWM control
- Oscillation frequency: 180KHz typ.
- Soft-start function: 8ms typ.
- With a power-off function.
- Built-in internal SW P-channel MOS
- SOP-8L Package.
Applications
- On-board power supplies of battery devices for
portable telephones, electronic notebooks, PDA,
and other hand-held sets.
- Power supplies for audio equipment, including
portable CD players and headphone stereo
equipment.
- Fixed voltage power supply for cameras, video
equipment and communications equipment.
- Power supplies for microcomputers.
- Conversion from four Ni-H or Ni-Cd cells or two
lithium-ion cells to 3.3V/3V.
- Conversion of AC adapter input to 5V/3V.
Pin Assignments
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.1 Feb 10, 2004
1/6
General Description
AP1623 consists of CMOS step-down switching
regulator-controllers with PWM control. These devices
include a reference voltage source, oscillation circuit,
error amplifier, internal PMOS and etc.
AP1623 provides low-ripple power, high efficiency,
and excellent transient characteristics. The PWM
control circuit is able to very the duty ratio linearly
from 0 up to 100. This converter also contains an
error amplifier circuit as well as a soft-start circuit that
prevent s overshoot at startup.
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 of up to 16V, it is also
ideal when operating via an AC adapter.
1
2
3
4
8
7
6
5
V
OUT
SW
V
CC
AP1623
SW
ON/OFF
Vss
Vss
PV
CC
Pin Descriptions
Name
Pin
V
OUT
Description
1
Output voltage monitoring pin
Power-off pin
H: Normal operation
(Step-down operation)
L: Step-down operation
stopped
(All circuits deactivated)
ON/OFF
2
V
CC
3
IC signal power supply pin
PV
CC
4
IC power supply pin
SW
5
、
6
Switch Pin. Connect external
inductor/diode here. Minimize
trace area at this pin to reduce
EMI.
V
SS
7
、
8 GND Pin
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PDF描述 |
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| AP1623S | PWM Control Step-Down Switching Regulator-Converter |
| AP1623SA | PWM Control Step-Down Switching Regulator-Converter |
| AP1623SL | JFET; Transistor Polarity:Dual N Channel; Breakdown Voltage, V(br)gss:-40V; Zero Gate Voltage Drain Current Min, Idss:0.5mA; Zero Gate Voltage Drain Current Max, Idss:10mA; Gate-Source Cutoff Voltage Max, Vgs(off):-2.5V |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP1623S | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:PWM Control Step-Down Switching Regulator-Converter |
| AP1623SA | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:PWM Control Step-Down Switching Regulator-Converter |
| AP1623SL | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:PWM Control Step-Down Switching Regulator-Converter |
| AP1623SLA | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:PWM Control Step-Down Switching Regulator-Converter |
| AP1624 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:PWM/PFM DUAL MODE STEP-UP DC/DC CONTROLLER |
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