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| 型号： | MCP1703T-2502E/DB |
| 厂商： | Microchip Technology |
| 文件页数： | 11/32页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.5V .25A SOT-223-3 |
| 标准包装： | 4,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.5V |
| 输入电压： | 最高 16V |
| 电压 - 压降（标准）： | 0.75V @ 250mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 250mA（最小） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-261-4，TO-261AA |
| 供应商设备封装： | SOT-223-3 |
| 包装： | 带卷 (TR) |
| 其它名称： | MCP1703T-2502E/DBTR |
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MCP1703
3.0
PIN DESCRIPTIONS
TABLE 3-1:
MCP1703 PIN FUNCTION TABLE
Pin No.
2x3 DFN-8
4
1
8
2, 3, 5, 6, 7
9
Pin No.
SOT-223-3
2,Tab
3
1
—
—
Pin No.
SOT-23A
1
2
3
—
—
Pin No.
SOT-89-3
1
3
2,Tab
—
—
Name
GND
V OUT
V IN
NC
EP
Function
Ground Terminal
Regulated Voltage Output
Unregulated Supply Voltage
No Connection
Exposed Thermal Pad (EP); must be
connected to VSS
3.1
Ground Terminal (GND)
3.3
Unregulated Input Voltage (V IN )
Regulator ground. Tie GND to the negative side of the
output and the negative side of the input capacitor.
Only the LDO bias current (2.0 μA typical) flows out of
this pin; there is no high current. The LDO output
regulation is referenced to this pin. Minimize voltage
drops between this pin and the negative side of the
load.
Connect V IN to the input unregulated source voltage.
Like all low dropout linear regulators, low source
impedance is necessary for the stable operation of the
LDO. The amount of capacitance required to ensure
low source impedance will depend on the proximity of
the input source capacitors or battery type. For most
applications, 1 μF of capacitance will ensure stable
operation of the LDO circuit. For applications that have
3.2
Regulated Output Voltage (V OUT )
load currents below 100 mA, the input capacitance
requirement can be lowered. The type of capacitor
Connect V OUT to the positive side of the load and the
positive terminal of the output capacitor. The positive
side of the output capacitor should be physically
located as close to the LDO V OUT pin as is practical.
The current flowing out of this pin is equal to the DC
used can be ceramic, tantalum, or aluminum
electrolytic. The low ESR characteristics of the ceramic
will yield better noise and PSRR performance at
high-frequency.
load current.
3.4
Exposed Thermal Pad (EP)
There is an internal electrical connection between the
Exposed Thermal Pad (EP) and the V SS pin; they must
be connected to the same potential on the Printed
Circuit Board (PCB).
? 2011 Microchip Technology Inc.
DS22049F-page 11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP1703T-2802E/CB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V max Vout =2.8V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MCP1703T-2802E/DB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V max Vout =2.8V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MCP1703T-2802E/MB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V max Vout =2.8V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MCP1703T-3002E/CB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V maxVout 3.0V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MCP1703T-3002E/DB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V maxVout 3.0V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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