TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

• GND Pin Current: Typically 2 mA at 1.5-A load current.
• Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
• Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
• Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

• Input Voltage: 2.7 V to 5.5 V
• Adjustable Output Voltage: 0.6 V to 5 V
• FlexCap: Stable with Ceramic, Tantalum, or Aluminum Capacitors
• Stable with 10-μF Input and Output Capacitors
• Low Ground-Pin Current
• 25-nA Quiescent Current in Shutdown Mode
• Ensured Output Current of 1.5 A
• Ensured VADJ Accuracy of ±1.5% at 25°C (A Grade)
• Ensured Accuracy of ±3.5% at 25°C (STD)
• Overtemperature and Overcurrent Protection
• ENABLE Pin (LP38502)

• Output options
• Adjustable Output
• Iout (Max) (A)
• 1.5
• Vin (Max) (V)
• 5.5
• Vin (Min) (V)
• 2.7
• Vout (Max) (V)
• 5
• Vout (Min) (V)
• 0.6
• Noise (uVrms)
• 100
• Iq (Typ) (mA)
• 2
• Thermal resistance θJA (°C/W)
• 33
• Rating
• Catalog
• Load capacitance (Min) (μF)
• 10
• Regulated outputs (#)
• 1
• Features
• Enable
• Accuracy (%)
• 2
• PSRR @ 100 KHz (dB)
• 25
• Dropout voltage (Vdo) (Typ) (mV)
• 220
• Operating temperature range (C)
• -40 to 125

LP38502-ADJ的完整型号有：LP38502ASD-ADJ/NOPB、LP38502ASDX-ADJ/NOPB、LP38502ATJ-ADJ/NOPB、LP38502SD-ADJ/NOPB、LP38502SDE-ADJ/NOPB、LP38502SDX-ADJ/NOPB、LP38502TJ-ADJ/NOPB、LP38502TS-ADJ/NOPB、LP38502TSX-ADJ/NOPB，以下是这些产品的关键参数及官网采购报价：

LP38502ASD-ADJ/NOPB，工作温度：-40 to 125，封装：WSON (NGS)-8，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LP38502ASD-ADJ/NOPB的批量USD价格：.931（1000+）

LP38502ASDX-ADJ/NOPB，工作温度：-40 to 125，封装：WSON (NGS)-8，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LP38502ASDX-ADJ/NOPB的批量USD价格：.776（1000+）

LP38502ATJ-ADJ/NOPB，工作温度：-40 to 125，封装：TO-263 (NDQ)-5，包装数量MPQ：1000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LP38502ATJ-ADJ/NOPB的批量USD价格：.776（1000+）

LP38502SD-ADJ/NOPB，工作温度：-40 to 125，封装：WSON (NGS)-8，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LP38502SD-ADJ/NOPB的批量USD价格：.931（1000+）

LP38502SDE-ADJ/NOPB，工作温度：PropertyValue，封装：WSON (NGS)-8，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LP38502SDE-ADJ/NOPB的批量USD价格：.931（1000+）

LP38502SDX-ADJ/NOPB，工作温度：-40 to 125，封装：WSON (NGS)-8，包装数量MPQ：4500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LP38502SDX-ADJ/NOPB的批量USD价格：.776（1000+）

LP38502TJ-ADJ/NOPB，工作温度：-40 to 125，封装：TO-263 (NDQ)-5，包装数量MPQ：1000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LP38502TJ-ADJ/NOPB的批量USD价格：.776（1000+）

LP38502TS-ADJ/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38502TS-ADJ/NOPB的批量USD价格：.931（1000+）

LP38502TSX-ADJ/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38502TSX-ADJ/NOPB的批量USD价格：.776（1000+）

LP38502SD-ADJEV — 用于 2.7V 至 5.5V 输入的 1.5A FlexCap 低压降线性稳压器的评估板 (LLP8)

This Evaluation Board highlights the LP38502SD-ADJ, a 1.5A Low-Dropout (LDO) linear regulator in the LLP-8 package which has an adjustable output voltage (set by external resistors).

Changing the Output Voltage

The resistors R1 and R2 set the output voltage. The equation to determine output voltage (...)