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參數(shù)資料
| 型號： | P1785-S08-R |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 216K |
| 代理商： | P1785-S08-R |
UNISONIC TECHNOLOGIES CO., LTD
P1785
Preliminary
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
1 of 7
Copyright 2008 Unisonic Technologies Co., Ltd
QW-R103-043.a
PWM CONTROL 2A
STEP-DOWN CONVERTER
DESCRIPTION
UTC P1785 consists of 2A step-down switching regulator
control which includes a reference voltage source, oscillation
circuit, error amplifier, internal PMOS and etc with PWM.
UTC P1785 can provide low-ripple power, high efficiency, and
excellent transient characteristics and an enable function, an over
current protect function and a short circuit protect function are
built inside, so the operation frequency will be reduced from
300KHz to 30KHz when OCP or SCP happens. And the PWM
control circuit can vary the duty ratio linearly from 100 down to
0%. This converter also includes an error amplifier circuit as well
as a soft-start circuit that prevents overshoot at startup. Also, to
minimum external component count an internal compensation
block is built in.
These ICs can work as step-down switching regulators with the
addition of an internal P-channel Power MOS, a coil, capacitors,
and a diode connected externally. They provide such outstanding
features: low current consumption. It is also suitable for the
operation via an AC adapter because this converter can
accommodate an input voltage up to 23V.
FEATURES
* Soft-start, Current Limit, Enable function
* Thermal Shutdown function
* Built-in internal SW P-channel MOS
* Input voltage: 3.6V to 23V.
* Output voltage: 0.8V to VCC.
* Duty ratio: 0% to 100% PWM control
* Oscillation frequency: 300KHz typ.
SOP-8
Lead-free:
P1785L
Halogen-free: P1785G
ORDERING INFORMATION
Ordering Number
Normal
Lead Free
Halogen Free
Package
Packing
P1785-S08-R
P1785L-S08-R
P1785G-S08-R
SOP-8
Tape Reel
P1785-S08-T
P1785L-S08-T
P1785G-S08-T
SOP-8
Tube
相關PDF資料 |
PDF描述 |
|---|---|
| P1786G-S08-R | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| P1885G-S08-R | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| P1885L-S08-R | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| P1886G-S08-R | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| P1886L-S08-R | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P1786 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786_09 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786_11 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786G-S08-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786G-S08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
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