LP38503-ADJ 用于 2.7V 至 5.5V 输入的 3A FlexCap 低压降线性稳压器 | 德州仪器 TI.com.cn

LP38503-ADJ (正在供货)

用于 2.7V 至 5.5V 输入的 3A FlexCap 低压降线性稳压器

 

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描述

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% VADJ tolerance (25°C) and 3% over line, load, and temperature.

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

WEBENCH® Designer LP38503-ADJ

  Min   Max Range
Vin  V 2.7 to 5.5V
Product Option
Vout  V
Iout  A ≤ 3.0A
Ambient Temp  °C -40.0 to 125.0°C

参数

与其它产品相比 线性稳压器(LDO) 邮件 下载到电子表格中
Part number 立即下单 Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating Output capacitor type PSRR @ 100 KHz (dB) Accuracy (%) Vdo (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP38503-ADJ 立即下单 Adjustable Output     3     5.5     2.7     5     0.6     DDPAK/TO-263 | 5
TO-263 | 5    
   
1     -40 to 125     33     100     0.91 | 1ku     Catalog     Ceramic     25     2     420     2     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-263: 142 mm2: 14.01 x 10.16 (TO-263 | 5)    
LP38501-ADJ 立即下单 Adjustable Output     3     5.5     2.7     5     0.6     DDPAK/TO-263 | 5
TO-263 | 5    
Enable     1     -40 to 125     33     100     0.91 | 1ku     Catalog     Ceramic     25     2     420     2     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-263: 142 mm2: 14.01 x 10.16 (TO-263 | 5)