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参数资料
| 型号： | MCP1253T-ADJI/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压），切换电容（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.5 V ~ 5.5 V |
| 输入电压： | 2 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 120mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP |
M
MCP1252/3
Low Noise, Positive-Regulated Charge Pump
Features
? Inductorless, Buck/Boost, DC/DC Converter
? Low Power: 80 μA (Typical)
? High Output Voltage Accuracy:
- ±2.5% (V OUT Fixed)
? 120 mA Output Current
? Wide Operating Temperature Range:
- -40°C to +85°C
? Thermal Shutdown and Short-Circuit Protection
? Uses Small Ceramic Capacitors
? Switching Frequency:
- MCP1252: 650 kHz
- MCP1253: 1 MHz
? Low Power Shutdown Mode: 0.1 μA (Typical)
? Shutdown Input Compatible with 1.8V Logic
? V IN Range: 2.0V to 5.5V
? Selectable Output Voltage (3.3V or 5.0V) or
Adjustable Output Voltage
? Space-saving, 8-Lead MSOP
? Soft-Start Circuitry to Minimize In-Rush Current
Applications
Description
The MCP1252/3 are inductorless, positive-regulated
charge pump DC/DC converters. The devices generate
a regulated fixed (3.3V or 5.0V) or adjustable output
voltage. They are specifically designed for applications
requiring low noise and high efficiency and are able to
deliver up to 120 mA output current. The devices allow
the input voltage to be lower or higher than the output
voltage, by automatically switching between buck/
boost operation.
The MCP1252 has a switching frequency of 650 kHz,
avoiding interference with sensitive IF bands. The
MCP1253 has a switching frequency of 1 MHz and
allows the use of smaller capacitors than the
MCP1252, thus saving board space and cost.
Both devices feature a power-good output that can be
used to detect out-of-regulation conditions. Extremely
low supply current and low external parts count (three
capacitors) make these devices ideal for small, battery-
powered applications. A shutdown mode is also pro-
vided for further power reduction. The MCP1252 and
MCP1253 feature thermal and short-circuit protection
and are offered in space-saving, 8-lead, MSOP
packages.
?
?
?
White LED Backlighting
Color Display Bias
Local 3V-to-5V Conversions
Package Types
MSOP (FIXED)
?
Flash Memory Supply Voltage
PGOOD
1
8
SELECT
?
?
?
SIM Interface Supply for GSM Phones
Smart Card Readers
PCMCIA Local 5V Supplies
V OUT
V IN
2
3
MCP1252
MCP1253
7
6
SHDN
C+
GND
4
5
C-
MSOP (ADJUSTABLE)
? 2002 Microchip Technology Inc.
PGOOD
V OUT
V IN
GND
1
2 MCP1252
3 MCP1253
4
8
7
6
5
FB
SHDN
C+
C-
DS21752A-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP1256 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Regulated 3.3V, Low-Ripple Charge Pump with Low- Operating Current SLEEP Mode or BYPASS Mode |
| MCP1256/7/8/9EV | 功能描述:电源管理IC开发工具 MCP1256/7/8/9 Eval Brd RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MCP1256_13 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Regulated 3.3V, Low-Ripple Charge Pump with Low- Operating Current SLEEP Mode or BYPASS Mode |
| MCP1256-E/MF | 功能描述:电荷泵 Frac Charge Pump w/ PG and Sleep 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 |
| MCP1256-E/UN | 功能描述:电荷泵 Frac Charge Pump w/ PG and Sleep 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 |
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