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Single-Phase Synchronous MOSFET Driver with Ultra-Low-Power Mode

Single-Phase Synchronous Buck MOSFET Driver with Ultra-Low-Power Mode in 2mm x 2mm Package

Product Details

Key Features

Parametric specs for MOSFET Drivers
No. of Drivers 2
Logic Polarity Inverting
Noninverting
RON (Ω) (max) 2
RON (Ω) (typ) 0.3
Configuration High-Side N Drive
Low-Side N Drive
IOUT (A) (peak) 8
VSUPPLY (V) 4.2
5.5
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins TDFN/8
TDFN-CU/8
Budgetary
Price (See Notes)
0
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for MOSFET Drivers
No. of Drivers 2
Logic Polarity Inverting
Noninverting
RON (Ω) (max) 2
RON (Ω) (typ) 0.3
Configuration High-Side N Drive
Low-Side N Drive
IOUT (A) (peak) 8
VSUPPLY (V) 4.2
5.5
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins TDFN/8
TDFN-CU/8
Budgetary
Price (See Notes)
0

Key Features

  • Extends Battery Life
    • Ultra-Low-Power Mode with 4µA Supply Current
    • 2V to 24V Input Voltage Range
    • Selectable Pulse-Skipping Mode
    • 7ns Minimum Guaranteed Dead-Time
  • Allows Operation Up to 3MHz per Phase
    • 0.7Ω Low-Side On-Resistance
    • 1.5Ω High-Side On-Resistance
    • 12ns Propagation Delay
    • 4.2V to 5.5V Bias Supply Range (MAX15492)
    • 3V to 5.5V Bias Supply Range (MAX15492B)
  • Integrated Boost Switch Saves Space and Cost

Applications/Uses

  • Intel® Ultrabook™/Notebook Computers
  • Multiphase DC-DC Converters
  • Tablet Computers

Description

The MAX15492 is a synchronous half-bridge driver with ultra-low-power mode. The device is intended to work with controller ICs such as the MAX15411, MAX15566/MAX15567, or MAX15576/MAX15577 in multiphase CPU core regulators. To provide the best light-load efficiency, the controller can place the device into an ultra-low power mode where the supply current is only 4µA.

The low-side driver is optimized to drive 3nF capacitive loads with 3ns/7ns typical fall/rise times, and the high-side driver with 7ns/14ns typical fall/rise times. Adaptive dead-time control prevents shoot-through currents and maximizes converter efficiency.

The MAX15492 is available in a small, 8-pin (2mm × 2mm) TDFN package with an exposed pad.

Simplified Block Diagram

MAX15492: Block Diagram MAX15492: Block Diagram 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 .

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.