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参数资料
| 型号： | P1986G-S08-R |
| 厂商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | HALOGEN FREE, SOP-8 |
| 文件页数： | 1/6页 |
| 文件大小： | 174K |
| 代理商： | P1986G-S08-R |
UNISONIC TECHNOLOGIES CO., LTD
P1986
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
1 of 6
Copyright 2009 Unisonic Technologies Co., Ltd
QW-R103-046.B
PWM CONTROL 3A
STEP-DOWN CONVERTER
DESCRIPTION
The UTC P1986 consists of 3A step-down switching
regulator with PWM control which includes a reference voltage
source, oscillation circuit, error amplifier, internal PMOS and etc.
The UTC P1986 can provide low-ripple power, high
efficiency, and perfect transient characteristics. The duty ratio
varies linearly from 0% to 100% in the PWM control. The error
amplifier circuit and soft-start circuit included in this device can
prevent overshoot at startup. Internally, the build-in compensation
block can reduce external component count. An enable function,
an over current protect (OCP) function and short circuit protect
(SCP) are also build inside, and when OCP happens, the
operation frequency will be reduced.
In application, the UTC P1986 is suitable for portable devices
when it works as an ideal power supply in SOP-8L package.
There is an internal P-channel power MOS, a coil, capacitors
inside and a diode connected externally that makes these ICs
step-down switching regulators.
FEATURES
* Input voltage varies from 3.6V to 20V
* Output voltage varies from 0.8V to VCC
* Duty ratio varies from 0% to 100% PWM control
* With 330kHz typical oscillation frequency
*
Thermal shutdown and SCP function and soft-start, current limit,
enable function
* Low ESR output capacitor(Multi-layer chip capacitor) application
*
Built-in switch P-channel power MOS
* Halogen Free
ORDERING INFORMATION
Ordering Number
Package
Packing
P1986G-S08-R
SOP-8
Tape Reel
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相关代理商/技术参数 |
参数描述 |
|---|---|
| P1986L-S08-R | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
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