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參數(shù)資料
| 型號： | MCP1703 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 250 mA, 16V, Low Quiescent Current |
| 中文描述： | 250毫安，16V的低靜態(tài)電流 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大?。?/td> | 302K |
| 代理商： | MCP1703 |
MCP1703
DS22049A-page 12
2007 Microchip Technology Inc.
5.0
FUNCTIONAL DESCRIPTION
The MCP1703 CMOS low dropout linear regulator is
intended for applications that need the lowest current
consumption
while
maintaining
regulation. The operating continuous load range of the
MCP1703 is from 0 mA to 250 mA (V
R
≥
2.5V). The
input operating voltage range is from 2.7V to 16.0V,
making it capable of operating from two or more alka-
line cells or single and multiple Li-Ion cell batteries.
output
voltage
5.1
Input
The input of the MCP1703 is connected to the source
of the P-Channel PMOS pass transistor. As with all
LDO circuits, a relatively low source impedance (10
Ω
)
is needed to prevent the input impedance from causing
the LDO to become unstable. The size and type of the
capacitor needed depends heavily on the input source
type (battery, power supply) and the output current
range of the application. For most applications (up to
100 mA), a 1 μF ceramic capacitor will be sufficient to
ensure circuit stability. Larger values can be used to
improve circuit AC performance.
5.2
Output
The maximum rated continuous output current for the
MCP1703 is 250 mA (V
R
≥
2.5V). For applications
where V
R
< 2.5V, the maximum output current is
200 mA.
A minimum output capacitance of 1.0 μF is required for
small signal stability in applications that have up to
250 mA output current capability. The capacitor type
can be ceramic, tantalum or aluminum electrolytic. The
esr range on the output capacitor can range from 0
Ω
to
2.0
Ω
.
5.3
Output Rise time
When powering up the internal reference output, the
typical output rise time of 1000 μs is controlled to
prevent overshoot of the output voltage.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP1703-1202E/DB | 功能描述:低壓差穩(wěn)壓器 - LDO Low Iq 250mA LDO Vin 16V maxVout 1.2V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1703-1502E/DB | 功能描述:低壓差穩(wěn)壓器 - LDO Low Iq 250mA LDO Vin 16Vmax Vout 1.5V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1703-1802E/DB | 功能描述:低壓差穩(wěn)壓器 - LDO Low Iq 250mA LDO Vin 16V maxVout 1.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1703-2502E/DB | 功能描述:低壓差穩(wěn)壓器 - LDO Low Iq 250mA LDO Vin 16V maxVout 2.5V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1703-2802E/DB | 功能描述:低壓差穩(wěn)壓器 - LDO Low Iq 250mA LDO Vin 16V max Vout =2.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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