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參數(shù)資料
| 型號(hào)： | LSP3102Y18AD |
| 廠商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.45 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | SOT-89, 5 PIN |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 179K |
| 代理商： | LSP3102Y18AD |
Liteon Semiconductor Corporation
LSP3102
1A Synchronous Step-Down Converter
Rev1.1
2/9
PIN CONFIGURATION
(Top View)
SOT89-5L
QFN3*3-16L
PIN DESCRIPTION
Pin Number
SOT89-5L
QFN3*3-16L
Pin
Name
Pin Function
4
7
RUN
Regulator Enable control input. Drive RUN above 1.2V to turn on the part. Drive
RUN below 0.6V to turn it off. In shutdown, all functions are disable drawing ＜
1A supply current. Do not leave RUN floating.
2
1~3,5
GND
Ground
3
13~15
SW
Power Switch Output. It is the Switch node connection to inductor. This pin
connects to the drains of the internal P-CH and N-CH MOSFET switches.
1
9~12
Vin
Supply Input Pin. Must be closely decoupled to GND, pin2, with a 2.2F or greater
ceramic capacitor.
5
4
Vout/
VFB
Vout ( LSP3102-1.2/1.8): Output Voltage Feedback Pin. An internal resistive
divider divides the output voltage down for comparison to the internal reference
voltage. VFB (LSP3102): Feedback Input Pin. Connected FB to the center point of
the external resistor divider. The feedback threshold voltage is 0.6V.
ABSOLUTE MAXIMUM RATINGS
(Note: Exceeding these limits may damage the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.)
PARAMETER
VALUE
UNIT
IN, FB, EN to G
-0.3 to 7
V
SW to G
-0.3 to VIN + 0.3
V
Continuous SW Current
Internally limited
A
Junction to Ambient Thermal Resistance (θJA)
160
°C/W
Junction to Case Thermal Resistance (θJC)
45
°C/W
Maximum Power Dissipation
Internally Limited
W
Operating Junction Temperature
-40 to 125
°C
Storage Temperature
-55 to 150
°C
Lead Temperature (Soldering, 10 sec)
300
°C
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