Top

High-Side Power Supply

Product Details

Key Features

Parametric specs for MOSFET Drivers
Configuration High-Side N Drive
VSUPPLY (V) 3.5 to 16.5
Oper. Temp. (°C) -40 to +85
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
2.31
View Less

Simplified Block Diagram

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 .

Parameters

Parametric specs for MOSFET Drivers
Configuration High-Side N Drive
VSUPPLY (V) 3.5 to 16.5
Oper. Temp. (°C) -40 to +85
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
2.31

Key Features

  • +3.5V to +16.5V Operating Supply Voltage Range
  • Output Voltage Regulated to VCC + 11V (typ)
  • 150µA (typ) Quiescent Current
  • Power-Ready Output

Applications/Uses

  • Battery Management
  • H-Switches
  • High-Side Power Control with N-Channel FETs
  • Low-Dropout Voltage Regulators
  • Portable Computing
  • Power Switching from Low Supply Voltages
  • Stepper Motor Drivers

Description

The MAX1822 high-side supply, using a regulated charge pump, generates a regulated output voltage 11V greater than the input supply voltage to power high-side switching and control circuits. The MAX1822 allows low-resistance N-channel MOSFETs (FETs) to be used in circuits that normally require costly, less efficient P-channel FETs and PNP transistors. The high-side output also eliminates the need for logic FETs in +5V and other low-voltage switching circuits.

A +3.5V to +16.5V input supply range and a typical quiescent current of only 150µA make the MAX1822 ideal for a wide range of line- and battery-powered switching and control applications where efficiency is crucial. Also provided is a logic-level power-ready output (PR) to indicate when the high-side voltage reaches the proper level.

The MAX1822 comes in an 8-pin SO package and requires three inexpensive external capacitors. The MAX1822 is a pin-for-pin replacement to the MAX622.

Simplified Block Diagram

MAX1822: Typical Operating Circuit MAX1822: 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 .