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Low-Dropout, 300mA Linear Regulator in µMAX

Low-Noise, Lowest-Dropout 300mA (Guaranteed) Regulator in µMAX

Product Details

Key Features

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 6.5
Adj. VOUT (V) (min) 1.25
Adj. VOUT (V) (max) 6.5
Rated ILOAD (mA) 300
Preset VOUT (V) 3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.15
ICC (µA) (max) 270
Output Voltage Noise (µV RMS) (typ) 55
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-4%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.05
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Simplified Block Diagram

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Sampling:
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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 6.5
Adj. VOUT (V) (min) 1.25
Adj. VOUT (V) (max) 6.5
Rated ILOAD (mA) 300
Preset VOUT (V) 3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.15
ICC (µA) (max) 270
Output Voltage Noise (µV RMS) (typ) 55
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-4%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.05

Key Features

  • High Output Current (300mA)
  • Low Output Voltage Noise: 60µVRMS
  • Low 105mV Dropout at 200mA Output
  • Low 120µA No-Load Supply Current
  • Thermal-Overload and Short-Circuit Protection
  • Reverse Battery Protection
  • 10nA Logic-Controlled Shutdown
  • Active-low FAULT Indicator
  • Small, Space-Saving µMAX Package (1.1mm max height)
  • Small 2.2µF Output Capacitor Saves Space and Cost

Applications/Uses

  • DSP Core Power
  • Electronic Planners
  • Handheld Instruments (PDAs, Palmtops)
  • Palmtop Computers
  • PCMCIA Cards
  • Wireless Handsets

Description

The MAX8860 low-noise, low-dropout linear regulator operates from a +2.5V to +6.5V input and is guaranteed to deliver 300mA. Typical output noise for this device is 60µVRMS, and typical dropout is 105mV at 200mA. In addition to the six available preset output voltages (+1.8V, +2.5V, +2.77V, +2.82V, +3V, and +3.3V), the Dual Mode™ feature allows the device to be configured as an adjustable output regulator from +1.25V to +6.5V.

Designed with an internal P-channel MOSFET pass transistor, the MAX8860 has a low 120µA supply current. An output fault-detection circuit indicates loss of regulation. Other features include a 10nA, logic-controlled shutdown mode, short-circuit and thermal-shutdown protection, and reverse battery protection. The MAX8860 is available in a miniature 8-pin µMAX® package.

Simplified Block Diagram

MAX8860: Typical Operating Circuit MAX8860: 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.