參數(shù)資料
型號: LTC3772ETS8#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 1 MM HEIGHT, PLASTIC, MO-193, SOT-23, 8 PIN
文件頁數(shù): 17/20頁
文件大小: 248K
代理商: LTC3772ETS8#PBF
6
LTC3772
3772f
UU
U
PI FU CTIO S
GND (Pin 1/Pin 4): Ground Pin.
VFB (Pin 2/Pin 3): Receives the feedback voltage from an
external resistor divider across the output.
ITH/RUN (Pin 3/Pin 2): This pin performs two functions. It
serves as the error amplifier compensation point as well as
the run control input. Nominal voltage range for this pin is
0.7V to 1.9V. Forcing this pin below 0.6V causes the
device to be shut down. In shutdown, all functions are
disabled and the PGATE pin is held high.
IPRG (Pin 4/Pin 1): Current Sense Limit Pin. Three-state
pin selects maximum peak sense voltage threshold. The
pin selects the maximum voltage drop across the external
P-channel MOSFET. Tie to VIN, GND or float to select
245mV, 105mV or 175mV respectively.
NC (Pin 5/Pin 8): No Connection Required.
SW (Pin 6/Pin 7): Switch Node Connection to Inductor
and Current Sense Input Pin. Normally, the external
P-channel MOSFET’s drain is connected to this pin.
VIN (Pin 7/Pin 6): Supply and Current Sense Input Pin.
This pin must be closely decoupled to GND (Pin 4).
Normally the external P-channel MOSFET’s source is
connected to this pin.
PGATE (Pin 8/Pin 5): Gate Drive for the External P-Channel
MOSFET. This pin swings from 0V to VIN.
Exposed Pad (Pin 9, DDB Only): The Exposed Pad is
ground and must be soldered to the PCB for electrical
connection and optimum thermal performance.
(DDB/TS8)
相關PDF資料
PDF描述
LTC3783IDHD 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
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LTC3783IDHD#TR 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
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