LP38503-ADJ_TI 3A、可调节超低压降稳压器

LP38503-ADJ的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：线性和低压降 (LDO) 稳压器
功能描述：3A、可调节超低压降稳压器
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LP38503-ADJ的产品详情：

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 LP38501 and LP38503 series of LDOs operate 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 LP38501-ADJ and LP38503-ADJ have low quiescent currents that change little with load current.

GND Pin Current: Typically 2 mA at 3-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low.
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.

LP38503-ADJ的优势和特性：

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 3 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 (EN) Pin (LP38501 only)
–40°C to +125°C Operating Temperature Range

LP38503-ADJ的参数（英文）：

Output options
Adjustable Output
Iout (Max) (A)
3
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
—
Accuracy (%)
2
PSRR @ 100 KHz (dB)
25
Dropout voltage (Vdo) (Typ) (mV)
420
Operating temperature range (C)
-40 to 125

LP38503-ADJ具体的完整产品型号参数及价格（美元）：

LP38503-ADJ的完整型号有：LP38503ATJ-ADJ/NOPB、LP38503TJ-ADJ/NOPB、LP38503TS-ADJ/NOPB、LP38503TSX-ADJ/NOPB，以下是这些产品的关键参数及官网采购报价：

LP38503ATJ-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LP38503ATJ-ADJ/NOPB的批量USD价格：.88（1000+）

LP38503TJ-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LP38503TJ-ADJ/NOPB的批量USD价格：.88（1000+）

LP38503TS-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LP38503TS-ADJ/NOPB的批量USD价格：1.056（1000+）

LP38503TSX-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LP38503TSX-ADJ/NOPB的批量USD价格：.88（1000+）

LP38503-ADJ的评估套件：

LP38503-ADJ的电路图解：

LP38503-ADJ的评估套件：