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| 型号： | MCP1825ST-0802E/DB |
| 厂商： | Microchip Technology |
| 文件页数： | 1/38页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 0.8V .5A SOT223-3 |
| 产品培训模块： | High Current LDOs |
| 标准包装： | 4,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 0.8V |
| 输入电压： | 2.1 V ~ 6 V |
| 电压 - 压降（标准）： | 0.21V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA（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： | MCP1825ST-0802E/DBTR |
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MCP1825/MCP1825S
500 mA, Low Voltage, Low Quiescent Current LDO Regulator
Features
? 500 mA Output Current Capability
? Input Operating Voltage Range: 2.1V to 6.0V
? Adjustable Output Voltage Range: 0.8V to 5.0V
(MCP1825 only)
? Standard Fixed Output Voltages:
- 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
? Other Fixed Output Voltage Options Available
Upon Request
? Low Dropout Voltage: 210 mV Typical at 500 mA
? Typical Output Voltage Tolerance: 0.5%
? Stable with 1.0 μF Ceramic Output Capacitor
? Fast response to Load Transients
? Low Supply Current: 120 μA (typical)
? Low Shutdown Supply Current: 0.1 μA (typical)
(MCP1825 only)
? Fixed Delay on Power Good Output
(MCP1825 only)
? Short Circuit Current Limiting and
Overtemperature Protection
? TO-263-5 (DDPAK-5), TO-220-5, SOT-223-5
Package Options (MCP1825).
? TO-263-3 (DDPAK-3), TO-220-3, SOT-223-3
Package Options (MCP1825S).
Applications
Description
The MCP1825/MCP1825S is a 500 mA Low Dropout
(LDO) linear regulator that provides high current and
low output voltages. The MCP1825 comes in a fixed or
adjustable output voltage version, with an output
voltage range of 0.8V to 5.0V. The 500 mA output
current capability, combined with the low output voltage
capability, make the MCP1825 a good choice for new
sub-1.8V output voltage LDO applications that have
high current demands. The MCP1825S is a 3-pin fixed
voltage version.
The MCP1825/MCP1825S is stable using ceramic
output capacitors that inherently provide lower output
noise and reduce the size and cost of the entire
regulator solution. Only 1 μF of output capacitance is
needed to stabilize the LDO.
Using CMOS construction, the quiescent current
consumed by the MCP1825/MCP1825S is typically
less than 120 μA over the entire input voltage range,
making it attractive for portable computing applications
that demand high output current. The MCP1825
versions have a Shutdown (SHDN) pin. When shut
down, the quiescent current is reduced to less than
0.1 μA.
On the MCP1825 fixed output versions, the scaled-
down output voltage is internally monitored and a
power good (PWRGD) output is provided when the
output is within 92% of regulation (typical). The
?
?
?
?
?
?
High-Speed Driver Chipset Power
Networking Backplane Cards
Notebook Computers
Network Interface Cards
Palmtop Computers
2.5V to 1.XV Regulators
PWRGD delay is internally fixed at 110 μs (typical).
The overtemperature and short circuit current-limiting
provide additional protection for the LDO during system
fault conditions.
? 2008 Microchip Technology Inc.
DS22056B-page 1
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| MCP1825ST-1202E/DB | 功能描述:低压差稳压器 - LDO 500 mA CMOS LDO Vout 1.2V ETR 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 |
| MCP1825ST-1202E/EB | 功能描述:低压差稳压器 - LDO 500 mA CMOS LDO Vout 1.2V ETR 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 |
| MCP1825ST-1802E/DB | 功能描述:低压差稳压器 - LDO 500 mA CMOS LDO Vout 1.8V ETR 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 |
| MCP1825ST-1802E/EB | 功能描述:低压差稳压器 - LDO 500 mA CMOS LDO Vout 1.8V ETR 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 |
| MCP1825ST-2502E/DB | 功能描述:低压差稳压器 - LDO 500 mA CMOS LDO Vout 2.5V ETR 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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