- 您现在的位置：买卖IC网 > PDF目录4954 > MCP1703T-3002E/DB (Microchip Technology)IC REG LDO 3V .25A SOT-223-3 PDF资料下载
参数资料
| 型号： | MCP1703T-3002E/DB |
| 厂商： | Microchip Technology |
| 文件页数： | 13/32页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3V .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： | 3V |
| 输入电压： | 最高 16V |
| 电压 - 压降（标准）： | 0.625V @ 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-3002E/DBTR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
MCP1703
5.0
FUNCTIONAL DESCRIPTION
5.2
Output
The MCP1703 CMOS low dropout linear regulator is
intended for applications that need the lowest current
consumption while maintaining output voltage
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
alkaline cells or single and multiple Li-Ion cell batteries.
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
5.1
Input
Equivalent Series Resistance (ESR) range on the
output capacitor can range from 0 Ω to 2.0 Ω .
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
The output capacitor range for ceramic capacitors is
1 μF to 22 μF. Higher output capacitance values may
be used for tantalum and electrolytic capacitors. Higher
output capacitor values pull the pole of the LDO
transfer function inward that results in higher phase
shifts which in turn cause a lower crossover frequency.
The circuit designer should verify the stability by
applying line step and load step testing to their system
when using capacitance values greater than 22 μF.
ensure circuit stability. Larger values can be used to
improve circuit AC performance.
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.
? 2011 Microchip Technology Inc.
DS22049F-page 13
相关PDF资料 |
PDF描述 |
|---|---|
| RCB35DHFD | CONN EDGECARD 70POS .050 SMD |
| EBM43DRAN | CONN EDGECARD 86POS R/A .156 SLD |
| HCC22DRTN | CONN EDGECARD 44POS DIP .100 SLD |
| UTM1H4R7MPD | CAP ALUM 4.7UF 50V 20% RADIAL |
| HBC40DREH-S93 | CONN EDGECARD 80POS .100 EYELET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP1703T-3302E/CB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V maxVout 3.3V 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-3302E/DB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V maxVout 3.3V 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-3302E/MB | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V maxVout 3.3V 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-3302E/MC | 功能描述:低压差稳压器 - LDO Low Iq 250mA LDO Vin 16V Vout=1.2V 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-3602E/CB | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Microchip Technology 最大输入电压:16 V 输出电压:3.6 V 回动电压（最大值）:1100 mV 输出电流:200 mA 负载调节:2.5 % 输出端数量:1 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-3 |
发布紧急采购，3分钟左右您将得到回复。