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参数资料
| 型号： | LTC3632IMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20MA 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 50 V |
| 输入电压： | 4.5 V ~ 50 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 20mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP-EP |
LTC3632
TYPICAL PERFORMANCE CHARACTERISTICS
OUTPUT
VOLTAGE
1V/DIV
Soft-Start Waveforms
OUTPUT
VOLTAGE
100mV/DIV
LOAD
CURRENT
20mA/DIV
Load Step Transient Response
OUTPUT
VOLTAGE
2V/DIV
INDUCTOR
CURRENT
20mA/DIV
Short-Circuit Response
C SS = 0.047μF
5ms/DIV
3632 G19
V IN = 10V
V OUT = 5V
1ms/DIV
3632 G20
V IN = 10V
V OUT = 5V
200μs/DIV
3632 G21
PIN FUNCTIONS
SW (Pin 1): Switch Node Connection to Inductor. This
pin connects to the drains of the internal power MOSFET
switches.
V IN (Pin 2): Main Supply Pin. A ceramic bypass capacitor
should be tied between this pin and GND (Pin 8).
I SET (Pin 3): Peak Current Set Input. A resistor from this
pin to ground sets the peak current trip threshold. Leave
floating for the maximum peak current (50mA). Short this
pin to ground for the minimum peak current (10mA). A
1μA current is sourced out of this pin.
SS (Pin 4) : Soft-Start Control Input. A capacitor to ground
at this pin sets the ramp time to full current output dur-
ing start-up. A 5.5μA current is sourced out of this pin. If
left floating, the ramp time defaults to an internal 0.75ms
soft-start.
RUN (Pin 5): Run Control Input. A voltage on this pin
above 1.2V enables normal operation. Forcing this pin
below 0.7V shuts down the LTC3632, reducing quiescent
current to approximately 3μA.
V FB (Pin 6): Output Voltage Feedback. Connect to an
external resistive divider to divide the output voltage down
for comparison to the 0.8V reference.
HYST (Pin 7): Run Hysteresis Open-Drain Logic Output.
This pin is pulled to ground when RUN (Pin 5) is below
1.2V. This pin can be used to adjust the RUN pin hysteresis.
See Applications Information.
GND (Pin 8, Exposed Pad Pin 9): Ground. The exposed
pad must be soldered to the printed circuit board ground
plane for optimal electrical and thermal performance.
3632fc
6
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| LTC3633AEFE-1#TRPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 28-Pin TSSOP EP T/R 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP |
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