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4A High-Performance LDO Linear Regulators

Fast Transient Response, High PSRR NMOS Linear Regulators that Deliver up to 4A Load Current

产品详情

主要特征

Parametric specs for Linear Regulators
VIN (V) (min) 0.9
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.6
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 4000
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.082
ICC (µA) (max) 150
Output Voltage Noise (µV RMS) (typ) 25
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/14
THIN WLP/15
Budgetary
Price (See Notes)
2.95
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参量

Parametric specs for Linear Regulators
VIN (V) (min) 0.9
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.6
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 4000
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.082
ICC (µA) (max) 150
Output Voltage Noise (µV RMS) (typ) 25
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-9%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/14
THIN WLP/15
Budgetary
Price (See Notes)
2.95

主要特征

  • Delivers Flexible Operating Range
    • 0.9V to 5.5V Input Voltage Range
    • 2.7V to 20V BIAS Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 4A Maximum Output Current
    • 51mV Dropout at 4A Load Current
    • 1.6mA Operating BIAS Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 28mV 4A Load Transient Excursion
    • 78dB BIAS PSRR at 10kHz
    • 52dB IN PSRR at 10kHz at 300mV Input-to-Output Headroom
  • Enables Ease-of-Use and Robust Protection
    • Stable with 10µF (Minimum) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse Current Protection
    • Power-OK Status Pin
  • Reduces Size, Improves Reliability
    • 14-pin (3mm x 3mm) TDFN, 20-pin (5mm x 5mm) TQFN, and 5 x 3 Bump, 0.4mm Pitch WLP Packages
    • -40°C to 125°C Operating Temperature

应用/用途

  • 基站
  • FPGA和DSP
  • 医疗、音频及仪器仪表
  • PLC
  • 便携式相机
  • 服务器μPs

描述

The MAX38907/MAX38908 are fast transient response, high-PSRR nMOS linear regulators that deliver up to 4A load current.

These regulators support a wide input supply range from 0.9V up to 5.5V, and BIAS voltage range from 2.7V to 20V to provide wider supply options in a variety of applications. Output accuracy of ±1% is maintained over line, load, and temperature variations, requiring only 300mV of input-to-output headroom at full load for a good PSRR. The output voltage can be adjusted to a value in the range of 0.6V to 5.0V to accommodate customers that desire to specify a single LDO in the BOM for multiple voltage rails.

The MAX38907 is configurable to one of 27 output voltages using three digital configuration pins. Additionally, each output voltage selection can be adjusted ±5% for margining. The output voltage on the MAX38908 can be adjusted to a value in the range of 0.6V to 5.0V by using two external feedback resistors. These LDOs 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 MAX38907 is offered in a 20-pin, 5mm x 5mm TQFN package, while the MAX38908 is offered in 5 x 3 bump, 0.4mm pitch WLP and 14-pin, 3mm x 3mm TDFN packages.

简化框图

MAX38907, MAX38908, MAX38909: Functional Diagram MAX38907, MAX38908, MAX38909: Functional Diagram Zoom icon

Technical Docs

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在Maxim的知识库中搜索技术问题的答案

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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