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.

• 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 A 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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• Output options
• Fixed Output
• Iout (Max) (A)
• 1
• Vin (Max) (V)
• 5.5
• Vin (Min) (V)
• 2.7
• Vout (Max) (V)
• 2.5
• Vout (Min) (V)
• 2.5
• Fixed output options (V)
• 2.5
• Noise (uVrms)
• 50
• Iq (Typ) (mA)
• 0.6
• Thermal resistance θJA (°C/W)
• 141
• Rating
• Catalog
• Load capacitance (Min) (F)
• 1
• Regulated outputs (#)
• 1
• Features
• Enable, Soft start
• Accuracy (%)
• 2
• PSRR @ 100 KHz (dB)
• 50
• Dropout voltage (Vdo) (Typ) (mV)
• 200
• Operating temperature range (C)
• -40 to 125

LP38869的完整型号有：LP38869MH/NOPB、LP38869MHE/NOPB、LP38869MHX/NOPB，以下是这些产品的关键参数及官网采购报价：

LP38869MH/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：92个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP38869MH/NOPB的批量USD价格：1.195（1000+）

LP38869MHE/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP38869MHE/NOPB的批量USD价格：1.195（1000+）

LP38869MHX/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP38869MHX/NOPB的批量USD价格：0.996（1000+）