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MAX18000

500mV to 5.5V Input nanoPower

Boost Converter with Short-Circuit

Protection

and True Shutdown

19-101651; Rev 0; 2/23

© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

General Description

The MAX18000 is a nanoPower boost converter with an

input voltage range of 0.5V to 5.5V (VOUT > VIN + 0.2V)

and a switching current limit of 3.6A. It features an ultra-

low quiescent current of 512nA which makes it ideal for

battery-powered applications requiring a long standby

time. The IC operates in nanoPower mode at low loads

and transitions into skip and CCM modes of operation at

higher load currents to ensure high efficiency over a

wide current range.

The output voltage can be varied between 2.5V and 5.5V

using a single RSEL resistor.

The IC features a True Shutdown™ mode, which

disconnects VIN and VOUT when the EN pin is pulled

low. It also features short-circuit protection circuitry that

limits the current to 700mA when VOUT < 0.5V and

automatically restarts the part when the fault is removed.

The thermal-shutdown protection disables the part when

the junction temperature crosses +165°C (typ).

The IC is available in 1.07mm x 1.57mm, 6-bump wafer-

level package (WLP).

Benefits and Features

• 0.5V to 5.5V Input Voltage (VOUT > VIN + 0.2V)

• 1.8V Minimum Start-Up Voltage

• 2.5V to 5.5V (In 100mV Steps) Output Voltage

• 3.6A Cycle-by-Cycle Inductor Current Limit

• 512nA IQ Supply Current into the Output

• True-Shutdown Mode

- 7nA Shutdown Current

- Output Disconnects from Input with no

Forward or Reverse Current

• Output Short-Circuit Protection

• Thermal-Shutdown Protection

• 95% Peak Efficiency with 90% or Higher

Efficiency for Load > 20µA

• 1.07mm x 1.57mm, 0.5mm Pitch 6-Bump WLP

• -40°C to +125°C Operating Temperature Range

Key Applications

• Wearable Applications

• IoT Applications

• Battery-Powered Applications

• Portable Devices

• Metering Applications

Ordering Information appears at end of data sheet.

Simplified Application Diagram

RSEL

OUT

RSEL

IN

LX

EN

GND

0.5V TO 5.5V

DC SOURCE

VOUT

2.5V TO 5.5V

MAX18000

LOW (OFF)

HIGH (ON)

L

CIN

10V, X5R,

0603, 22µF

COUT

10V, X5R,

0603, 2 x 22µF

6.35mm

RSEL

0402

CIN

0603