LP38869
- Operating Input Supply Range: +2.7V to + 5.5V
- Maximum Continuous Output Current: 1A
- Preset Output Voltage of 2.5V, or Adjustable Output Voltage From 0.8V to 5.0V
- Pre-Set Output Initial VOUT Tolerance ±0.5%
- Adjustable VREF Tolerance of ±0.75%
- PSRR of 50dB at 100kHz
- Low 200 mV Dropout at 1A
- Typical 2 µA Supply Current in Shutdown Mode
- Adjustable Soft-Start for Output Current
- Fold-Back Output Current Limit
- Stable With Ceramic, Tantalum, or Aluminum Capacitors
- Stable With 1uF Input/Output Capacitors
- Thermal Shutdown
- 16-pin HTSSOP Package
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The LP38869 low-dropout linear regulator operates with an input voltage supply from +2.7V to +5.5V input, and delivers a specified 1A load current with a low 200 mV dropout. The high 50 dB PSRR at 100 kHz results from a high gain control loop that also yields excellent transient response. Coupled with a high accuracy output voltage, ±0.75 % over temperature, the LP38869 is an ideal power supply for FPGAs, DSPs or MCUs. Output voltage is preset at +2.5V, or may be adjustable between +0.8V to +5V with an external resistor divider.
The LP38869 only needs 1 μF output capacitance for stability. The FlexCap compensation allows the use of any type of output capacitor, regardless of ESR. Other features include: Soft-Start; delayed reset output; low-power shutdown; short-circuit protection; and thermal shutdown protection
Ground Pin Current: Typically less than 1 mA at 1A load
Shutdown Mode: Typically 2 µA quiescent current when the SHDN pin is pulled low.
Simplified Compensation: Stable with any type of output capacitor.
技术文档
类型 | 项目标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LP38869 1A FlexCap, Low-Dropout Linear Reg w/ 0.75% Accuracy 数据表 (Rev. B) | 2013年 4月 8日 | |||
应用手册 | AN-2261 LP38869EVAL - 800mA LDO with High PSRR and Low Noise (Rev. A) | 2013年 4月 24日 |
设计和开发
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封装 | 引脚数 | 下载 |
---|---|---|
HTSSOP (PWP) | 16 | 了解详情 |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 认证摘要
- 持续可靠性监测
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