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200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23

Ultra-Small, 200mA Negative Output LDO in SOT23

Product Details

Key Features

Applications/Uses

Parametric specs for Linear Regulators
VIN (V) (min) -6.5
VIN (V) (max) -2.5
Adj. VOUT (V) (min) -5.5
Adj. VOUT (V) (max) -1.25
Rated ILOAD (mA) 200
Preset VOUT (V) -5
-3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.08
ICC (µA) (max) 180
Output Voltage Noise (µV RMS) (typ) 160
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
Budgetary
Price (See Notes)
1.23
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Simplified Block Diagram

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) -6.5
VIN (V) (max) -2.5
Adj. VOUT (V) (min) -5.5
Adj. VOUT (V) (max) -1.25
Rated ILOAD (mA) 200
Preset VOUT (V) -5
-3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.08
ICC (µA) (max) 180
Output Voltage Noise (µV RMS) (typ) 160
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
Budgetary
Price (See Notes)
1.23

Key Features

  • Guaranteed 200mA Output Current
  • Low 80mV Dropout Voltage at 200mA
  • Low 85µA Quiescent Supply Current
  • Low 1nA Current Shutdown Mode
  • Stable with 1µF COUT
  • PSRR > 60dB at 100Hz
  • Thermal Overload Protection
  • Short-Circuit Protection
  • -5.0V, -3.0V, or -2.5V Output Voltage or Adjustable (-1.25V to -5.5V)
  • Tiny SOT23-5 Package

Applications/Uses

  • Access Products
  • Cell Phones
  • Cordless Phones
  • Digital Cameras and Camcorders
  • Glucose Meters
  • Handhelds (GPS, POS Terminal)
  • HDD and RAID
  • PC Add-In Cards
  • Power Supplies

Description

The MAX1735 negative-output, low-dropout linear regulator operates from a -2.5V to -6.5V input and delivers a guaranteed 200mA with a low 80mV dropout. The high-accuracy (±1%) output voltage is preset or can be adjusted from -1.25V to -5.5V with an external resistive voltage-divider.

An internal N-channel MOSFET allows for a low 85µA quiescent current virtually independent of the load, making this device ideal for battery-powered portable equipment, such as PDAs, mobile phones, cordless phones, and wireless data modems.

The device is available in several preset output voltage versions: -5.0V, -3.0V, and -2.5V. All versions offer a 1nA low-power shutdown mode, short-circuit protection, and thermal overload protection. The device is offered in a tiny 5-pin SOT23 package.

Simplified Block Diagram

MAX1735: Typical Operating Circuit MAX1735: Typical Operating Circuit Zoom icon

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 .