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參數(shù)資料
| 型號(hào)： | LSP5505SAC |
| 廠商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO8 |
| 封裝： | GREEN, SOP-8 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 260K |
| 代理商： | LSP5505SAC |
LSP5505
Peak 3A , 18V Step-Down Converter
Rev. 1.1
Input voltage: 3.6V to 18V.
Output voltage: 0.8V to VCC.
Duty ratio: 0% to 100% PWM control
Oscillation frequency: 300KHz typ.
Soft-start, Current limit, Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOSFET
SOP-8L:
Available
in
“Green”
Molding
Compound (no Br, Sb)
Lead Free Finish/RoHS Compliant
The LSP5505 is high efficiency, simple to use,
peak 3A step-down regulator flexible enough to be
optimized for a variety of applications. LSP5505
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 100%. 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 18V, it is also suitable for the operation via an
AC adapter.
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
Telecom Equipment
ADSL Modem
Networking power supply
Microprocessor core supply
Printer and Peripheral Equipment
Typical Application Circuit
Features
General Description
Applications
VOUT = 5V/2.5A
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