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| 型號： | LSP3113LAD |
| 廠商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, TDFN-10 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 345K |
| 代理商： | LSP3113LAD |
Liteon Semiconductor Corporation
LSP3113
Dual Channel 1.5 MHZ, 800mA Synchronous Step-Down Converter
Rev1.2
1/8
APPLICATIONS
Portable Media Players
Digital Still Cameras
Cellular Telephones
PDAs
Wireless and DSL modems
PIN CONFIGURATION
(Top View)
10-Lead (3mm ×3mm) Plastic TDFN
Exposed Pad is PGND
Must be connected to GND.
PIN DESCRIPTION
Pin Number
Pin Name
Pin Function
1
EN1
Channel 1 Enable
2
FB1
Channel 1 output feedback. It receives the feedback voltage from the
external resistive divider across the output.
3
IN2
Channel 2 Power Supply
4
GND2
Channel 2 Ground
5
SW2
Channel 2 power switch output.
6
IN2
Channel 2 Power Supply
7
FB2
Channel 2 output feedback. It receives the feedback voltage from the
external resistive divider across the output.
8
IN1
Channel 1 Power Supply
9
GND1
Channel 1 Ground
10
SW1
Channel 1 power switch output.
EXPOSED PAD
Power Ground. It must be connect to ground properly.
GENERAL DESCRIPTION
The LSP3113 is a dual channel high efficiency
monolithic synchronous step down current mode
DC-DC converter operating at 1.5MHz constant
frequency. The device integrates a main switch and a
synchronous rectifier for high efficiency without an
external Schottky diode for each of the channels. The
LSP3113 can operate from a 2.5V to 6.5V input voltage
and is ideal for powering portable equipment that
operate from a single cell lithium-Ion (Li+) battery. It
can supply 800mA output current for each channel and
can also operate at 100% duty cycle for low dropout
operation, extending battery life in portable system.
FEATURES
High Efficiency : Up to 95%
1.5MHz Constant Frequency Operation
800mA Output Current per each channel
Very Low Quiescent Current of 400A
2.5V to 6.5V Input Voltage Range
No Schottky Diode Required
0.6V reference allows Output Voltage as low as 0.6V
Current Mode Operation for excellent line and load
transient Response
100% duty cycle for low dropout operation
Short-Circuit &Thermal Fault Protection
＜
1A Shutdown Current
Small Thermally Enhanced TDFN3*3-10L Package
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