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1A, Microcap, Low-Dropout, Linear Regulator

Compact, 1A, Low-Dropout Linear Regulator Requires Just 1µF Output Capacitor!

Product Details

Key Features

Applications/Uses

Parametric specs for Linear Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 1
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.2
ICC (µA) (max) 2000
Output Voltage Noise (µV RMS) (typ) 150
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-8%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
2.83
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Simplified Block Diagram

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 1
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.2
ICC (µA) (max) 2000
Output Voltage Noise (µV RMS) (typ) 150
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-8%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
2.83

Key Features

  • Guaranteed 1A Output Current
  • Stable with COUT = 1µF
  • Low 200mV Dropout at 1A
  • ±1% Output Voltage Accuracy
    • Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V and Adjustable from +0.8V to +5.0V
  • 54dB PSRR at 100kHz
  • Adjustable Soft-Start
  • 3ms Reset Output
  • Foldback Output Current Limit
  • Thermal Overload Protection
  • High-Power 16-Pin TSSOP Package (1.5W)
    • 30% Smaller than SOT223 (Only 1.1mm High)

Applications/Uses

  • Mobile Phone Base Stations
  • Network Equipment
  • Notebook Computers
  • Personal Computing
  • Telecom Hardware

Description

The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The high-accuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider.

The MAX8869 uses Microcap® technology and requires only a small 1µF output capacitor for guaranteed stability. An internal PMOS pass transistor allows low 500µA supply current, making this regulator useful for networking and telecom hardware as well as battery-operated equipment. Other features include soft-start, low-power shutdown, short-circuit protection, and thermal shutdown protection.

The MAX8869 is available in a 1.5W, 16-pin TSSOP package, which is 30% smaller than a SOT223 and only 1.1mm high.

Simplified Block Diagram

MAX8869: Typical Operating Circuit MAX8869: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .