LP38869 - 具有 1% 精度的 1A FlexCap 低压差线性稳压器

LP38869是TI德州仪器公司的一款单通道LDO产品，LP38869是具有 1% 精度的 1A FlexCap 低压差线性稳压器，本站介绍了LP38869的封装应用图解、特点和优点、功能等，并给出了与LP38869相关的TI元器件型号供参考。

LP38869 - 具有 1% 精度的 1A FlexCap 低压差线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

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.

产品特性

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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