Datasheet 搜索 > 稳压芯片 > Linear Technology（凌力尔特） > LTC3803HS6#TRPBF 数据手册 > LTC3803HS6#TRPBF 数据手册 6/16 页
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LTC3803HS6#TRPBF 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
稳压芯片
封装:
TSOT-23-6
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P6Hot
典型应用电路图在P1P12P13P16
原理图在P6P7
封装尺寸在P14
焊盘布局在P14
技术参数、封装参数在P4
应用领域在P1P4P8P9P10P11P12P13P16
电气规格在P3P4P5
导航目录
LTC3803HS6#TRPBF数据手册
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LTC3803
6
3803fc
PIN FUNCTIONS
I
TH
/RUN (Pin 1): This pin performs two functions. It serves
as the error amplifi er compensation point as well as the
run/shutdown control input. Nominal voltage range is 0.7V
to 1.9V. Forcing this pin below the shutdown threshold
(V
ITHSHDN
) causes the LTC3803 to shut down. In shutdown
mode, the NGATE pin is held low.
GND (Pin 2): Ground Pin.
V
FB
(Pin 3): Receives the feedback voltage from an external
resistive divider across the output.
SENSE (Pin 4): This pin performs two functions. It monitors
switch current by reading the voltage across an external
current sense resistor to ground. It also injects a current
ramp that develops slope compensation voltage across
an optional external programming resistor.
V
CC
(Pin 5): Supply Pin. Must be closely decoupled to
GND (Pin 2).
NGATE (Pin 6): Gate Drive for the External N-Channel
MOSFET. This pin swings from 0V to V
CC
.
BLOCK DIAGRAM
–
+
–
+
SLOPE
COMP
CURRENT
RAMP
V
CC
GATE
DRIVER
NGATE
4
SENSE
3803 BD
200kHz
OSCILLATOR
UNDERVOLTAGE
LOCKOUT
Q
R
CURRENT
COMPARATOR
SHUTDOWN
COMPARATOR
SHUTDOWN
S
20mV
I
TH
/RUN
ERROR
AMPLIFIER
V
FB
SOFT-
START
CLAMP
V
CC
SHUNT
REGULATOR
SWITCHING
LOGIC AND
BLANKING
CIRCUIT
6
0.28V
V
CC
< V
TURNON
0.3µA
V
CC
–
+
5
3
GND
1.2V
2
1
800mV
REFERENCE
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