Top

Ultra-Tiny Micropower, 1A Ideal Diode with Ultra-Low Voltage Drop

Current Switch/Ideal Diode Saves Space and Offers 10x Lower Voltage Drop Than Schottkys

Product Details

Key Features

Applications/Uses

Parametric specs for Current Sense Amplifiers
VSENSE_FS (mV) (recomm.) 100
Output Format Voltage
CMVR (V) (min) 1.5
CMVR (V) (max) 5.5
VCC (V) (min) 1.5
VCC (V) (max) 5.5
ICC (µA) (typ) 7
Bi-Dir. Curr. Sense Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
THIN WLP/4
Budgetary
Price (See Notes)
0.26
Parametric specs for Switches and Multiplexers (Low Voltage)
Package/Pins SOT23/5
THIN WLP/4
Budgetary
Price (See Notes)
0.26
View More

Simplified Block Diagram

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 Current Sense Amplifiers
VSENSE_FS (mV) (recomm.) 100
Output Format Voltage
CMVR (V) (min) 1.5
CMVR (V) (max) 5.5
VCC (V) (min) 1.5
VCC (V) (max) 5.5
ICC (µA) (typ) 7
Bi-Dir. Curr. Sense Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
THIN WLP/4
Budgetary
Price (See Notes)
0.26
Parametric specs for Switches and Multiplexers (Low Voltage)
Package/Pins SOT23/5
THIN WLP/4
Budgetary
Price (See Notes)
0.26

Key Features

  • Save Critical Voltage Drop in Portable Application
    • Drops Less Than 43mV at 500mA; 85mV at 1A
  • Longer Battery Life
    • Low Leakage When Reverse-Biased: 70nA (Typ), 1.5µA (Max)
    • Low Supply Quiescent Current: 7µA (Typ), 18µA (Max)
  • Saves Space Over Larger Schottky Diodes
    • Tiny 0.73mm x 0.73mm 4-bump WLP
    • SOT23-5 Package
  • Supply Voltage Range 1.5V to 5.5V
  • Thermally Self-Protecting
  • -40°C to +125°C Temperature Range

Applications/Uses

  • Cellular Phones
  • Electronic Toys
  • Notebook and Tablet Computers
  • Portable Media Players
  • Portable/Wearable Medical Devices
  • USB-Powered Peripherals

Description

The MAX40200 is an ideal diode current-switch that drops so little voltage that it approaches an order of magnitude better than Schottky diodes.

When forward-biased and enabled, the MAX40200 conducts with as little as 85mV of voltage drop while carrying currents as high as 1A. Typical voltage drop is 43mV at 500mA, with the voltage drop increasing linearly at higher currents. The MAX40200 thermally protects itself, and any downstream circuitry, from overtemperature conditions.

When disabled (EN = low) the MAX40200 blocks voltages up to 6V in either direction, making it suitable for most low-voltage, portable electronic devices. The MAX40200 operates from a supply voltage of 1.5V to 5.5V.

The MAX40200 is available in a tiny, 0.73mm X 0.73mm, 4-bump wafer-level package (WLP), with a 0.35mm bump pitch and only 0.5mm high and 5-pin SOT-23 package. The MAX40200 operates over the extended -40°C to +125°C temperature range.

Design Solution: Cut Your Losses—With an Ideal Diode ›

Design Solution: Design a Cooler, Safer Smart-Home Hub—Using an Ideal Diode ›


How to Add a Diode ORing or Battery Backup Circuit Using the MAX40200 Ideal Diode

Simplified Block Diagram

MAX40200: Functional Diagram and Package MAX40200: Functional Diagram and Package 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 .