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参数资料
| 型号： | MCP1252DM-BKLT |
| 厂商： | Microchip Technology |
| 文件页数： | 8/18页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR MCP1252 |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 120mA |
| 输出及类型： | 1，非隔离 |
| 特点： | 短路和热保护，关闭 |
| 输入电压： | 2 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MCP1252 |
MCP1252/3
3.0
PIN FUNCTIONS
3.6
Flying Capacitor Positive Terminal
(C+)
TABLE 3-1:
PIN FUNCTION TABLE
The charge pump capacitor (flying capacitor) is used to
V IN
Pin
No.
1
2
3
Name Function
PGOOD Open-Drain Power GOOD Output
V OUT Regulated Output Voltage
Power Supply Input
transfer charge from the input supply to the regulated
output.
Proper orientation is imperative when using a polarized
capacitor.
3.7 Shutdown Input (SHDN)
4
5
6
GND
C-
C+
Ground Terminal
Flying Capacitor Negative Terminal
Flying Capacitor Positive Terminal
A logic-low signal applied to SHDN disables the device.
A logic-high signal applied to this pin allows normal
operation.
7
SHDN
Shutdown Mode, Active-Low Input
3.8
Select (SELECT) Input or
8
SELECT Output Voltage Select Pin.
(MCP1252-33X50, MCP1253-33X50)
Feedback (FB) Input
FB
Feedback Input Pin for Adjustable Output
(MCP1252-ADJ, MCP1253-ADJ)
MCP1252-33X50, MCP1253-33X50:
SELECT : Select Input Pin.
3.1
Open-Drain Power Good Output
(PGOOD)
Connect SELECT to V IN for 3.3V fixed output. Connect
SELECT to GND for a 5.0V fixed output.
MCP1252-ADJ, MCP1253-ADJ:
PGOOD is a high-impedance when the output voltage
is in regulation. A logic-low is asserted when the output
falls 7% (typical) below the nominal value. The PGOOD
output remains low until V OUT is within 3% (typical) of
its nominal value. On start-up, this pin indicates when
the output voltage reaches its final value. PGOOD is
high-impedance when SHDN is low.
FB : Feedback Pin.
A resistor divider connected to this pin determines the
adjustable V OUT value (1.5V to 5.5V).
3.2
Regulated Output Voltage (V OUT )
Bypass to GND with a filter capacitor.
3.3
Power Supply Input (V IN )
It is recommended that V IN be tied to a ceramic bypass
capacitor.
3.4
Ground (GND)
It is recommended that the ground pin be tied to a
ground plane for best performance.
3.5
Flying Capacitor Negative
Terminal (C-)
The charge pump capacitor (flying capacitor) is used to
transfer charge from the input supply to the regulated
output.
It is recommended that a low ESR (equivalent series
resistance) capacitor be used.
DS21752A-page 8
? 2002 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP1252T-33X50I/MS | 功能描述:电荷泵 120mA Regulated RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MCP1252T-ADJI/MS | 功能描述:电荷泵 120mA Regulated Adj RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MCP1253 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low Noise, Positive-Regulated Charge Pump |
| MCP1253-33X50I/MS | 功能描述:电荷泵 120mA Regulated RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MCP1253-33X50I/MS | 制造商:Microchip Technology Inc 功能描述:DC/DC Charge Pump Converter (DC-DC) IC |
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