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11µVRMS Low-Noise, 500mA LDO Linear Regulators with Low-Power Mode

Industry’s First 500mA LDO with Low-Power Mode Applied to Always-on Devices

产品详情

主要特征

Parametric specs for Linear Regulators
VIN (V) (min) 1.7
VIN (V) (max) 5.5
Rated ILOAD (mA) 500
Preset VOUT (V) 0.8V to 5.0V
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.036
ICC (µA) (max) 50
Output Voltage Noise (µV RMS) (typ) 11
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +125
Package/Pins THIN WLP/6
Budgetary
Price (See Notes)
0.74
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参量

Parametric specs for Linear Regulators
VIN (V) (min) 1.7
VIN (V) (max) 5.5
Rated ILOAD (mA) 500
Preset VOUT (V) 0.8V to 5.0V
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.036
ICC (µA) (max) 50
Output Voltage Noise (µV RMS) (typ) 11
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +125
Package/Pins THIN WLP/6
Budgetary
Price (See Notes)
0.74

主要特征

  • Deliver Wide, Flexible Operating Range
    • 1.7V to 5.5V Input Supply Range
    • 0.8V to 5.0V Output Voltage Range
    • 500mA Maximum Output Current
    • 24.3mV Dropout at 500mA Load and 5.0V Input Voltage
    • 19.2µA No-Load Supply Current in Low-Power Mode
    • 332µA Supply Current in Normal Mode
    • <1µA Shutdown Supply Current
  • Reduce Noise and Improve Accuracy
    • 11µVRMS Output Noise, 10Hz to 100kHz
    • 70dB PSRR at 10kHz, 250mA Load Current, and 300mV Input and Output Voltage Separation
    • ±1% DC Accuracy over Load, Line, and Temperature Variations
  • Enable Ease-of-Use and Robust Protection
    • Stable with 2µF (Minimum Effective) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Reverse-Current Protection
    • Power-OK Output
  • Reduce Size and Improve Reliability
    • 1.42mm x 0.83mm, 3 x 2, 6-Bump, 0.4mm Pitch WLP
    • 2mm x 2mm, 8-Pin TDFN Package
    • -40°C to +125°C Operating Temperature

应用/用途

  • Digital Camera and Audio Devices
  • High-Performance Sensors for Portable Applications
  • Imaging and High-Frequency Sensors
  • IoT Sensors
  • Mobile Phones
  • Portable and Battery-Powered Equipment

描述

The MAX38911/MAX38912 are low-noise, high-PSRR PMOS linear regulators that deliver up to a 500mA load current with only 11µVRMS of output noise from 10Hz to 100kHz.

The regulators are fully protected from damage by internal circuitry that provides programmable inrush current limiting, output overcurrent limiting, reverse current limiting, and thermal overload protection.

The MAX38911 is available in WLP and TDFN packages and are default factory preprogrammed to an output voltage of 1.8V. Custom fixed-output voltage levels in the range of 0.8V to 5.0V in 50mV steps are also available, see Ordering Information.

MAX38912 provides enhanced flexibility with adjustable output voltage in the range of 0.8V to 5.0V by using two external feedback resistors.

The MAX38911ANT is packaged in a 1.42mm x 0.83mm, 3 x 2, 6-bump, 0.4mm pitch WLP, while the MAX38911ATA and MAX38912ATA are packaged in a 8-pin, 2mm x 2mm TDFN.

简化框图

MAX38911, MAX38912: Application Diagram MAX38911, MAX38912:Application Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后,所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站,请创建一个新帐户。有关此样片网站的任何问题,请联系SampleSupport@analog.com