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400mV to 5.5V Input, 2A nanoPower Boost Converter with Short-Circuit Protection and True Shutdown

Industry’s First nanoPower Boost with Integrated Short Circuit Protection

Product Details

The MAX17227A is a nanoPower boost converter capable of delivering load up to 2A peak inductor current and offering True Shutdown™, cycle-by-cycle inductor current limit, short-circuit, and thermal protection. During shutdown, current drawn from the input pin is 1nA. The MAX17227A offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load and line range. The MAX17227A is ideal for battery-powered applications where long battery life is a must and high efficiency is required at all power levels.

The MAX17227A utilizes adjustable on-time, pulse-frequency-modulation (PFM) control scheme that consumes ultra-low quiescent current. The MAX17227A features True Shutdown mode where the output disconnects from the input with no forward or reverse-current. This saves precious energy from the battery for systems that dynamically turn on and off by having the ability to startup into a precharged output capacitor.

The MAX17227A is offered in a space-saving and costeffective 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 8-pin, 2mm x 2mm TDFN packages. The operating temperature range is from -40°C to +125°C.

Key Features

  • 350nA Quiescent Supply Current from Output
  • Output Short-Circuit Protection
  • True Shutdown Mode
    • 1nA Shutdown Current
    • Output Disconnects from Input
    • No Reverse-Current with Any Voltage on VOUT
  • 96% Peak Efficiency, 90% or Higher at 500μA
  • Typical 850mA Output Current at 5.0V (VIN = 3.0V)
  • 400mV to 5.5V Input Range, Up to 5.35V in Regulation
  • 880mV Minimum Startup Voltage
  • Single Resistor Adjustable Output Voltage
    • 2.3V to 5.2V Output Voltage Range with 100mV Steps
    • 5.4V, 5.5V Output Voltage Settings Available
  • 2A Peak Inductor Current Limit
  • Thermal Shutdown Protection
  • Multiple Package Options:
    • 1.58mm x 0.89mm, 0.4mm pitch, 6-bump (3 x 2) WLP
    • 2mm x 2mm 8-pin TDFN
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Clinical Instrumentation
  • Consumer
  • Emergency Lighting
  • Industrial
  • IoT Sensors
  • Medical
  • Near-Band IoT
  • Wearable Audio
  • WiFi Module
Parametric specs for Step-Up (Boost) Switching Regulators
VIN (V) (min) 0.4
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.3
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 1
Switch Type Internal
Preset VOUT (V) 2.3-5.5
Synchronous Switching Yes
ICC (mA) (typ) 0.00035
Shutdown Mode Supply Current (µA) (typ) 0.001
Shutdown Mode Supply Current (µA) (max) 0.1
# DC-DC Outputs 1
Design Tools EE-Sim
Package/Pins THIN WLP/6
Budgetary
Price (See Notes)
$1.54 @1k
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Simplified Block Diagram

MAX17227A: Typical Operating Circuit MAX17227A: Typical Operating Circuit Zoom icon

Technical Docs

Design & Development

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Description

The MAX17227A WLP evaluation kit (EV kit) evaluates the MAX17227A IC in a WLP package. The MAX17227A is a nanoPower Boost converter with 2A peak inductor current limit and has True Shutdown™ mode. The EV kit operates over an input range of 400mV to 5.5V, depending on load, with 0.88V typical startup with 3kΩ load. The EV kit provides resistor-configurable output voltages from 2.3V to 5.5V. Refer to the MAX17227A IC data sheet for output voltage setting. The EV kit comes with the MAX17227AANT+ installed.

View Details

Features

  • Evaluates the MAX17227A in a 6-pin WLP
  • 400mV to 5.5V Input Range
  • 2.3V to 5.5V Configurable Output Voltage
  • Up to 1A Output Current
  • Proven Two-Layer, 1oz Copper PCB Layout
  • Demonstrates Compact Solution Size
  • Fully Assembled and Tested

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Parameters

Parametric specs for Step-Up (Boost) Switching Regulators
VIN (V) (min) 0.4
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.3
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 1
Switch Type Internal
Preset VOUT (V) 2.3-5.5
Synchronous Switching Yes
ICC (mA) (typ) 0.00035
Shutdown Mode Supply Current (µA) (typ) 0.001
Shutdown Mode Supply Current (µA) (max) 0.1
# DC-DC Outputs 1
Design Tools EE-Sim
Package/Pins THIN WLP/6
Budgetary
Price (See Notes)
$1.54 @1k

Key Features

  • 350nA Quiescent Supply Current from Output
  • Output Short-Circuit Protection
  • True Shutdown Mode
    • 1nA Shutdown Current
    • Output Disconnects from Input
    • No Reverse-Current with Any Voltage on VOUT
  • 96% Peak Efficiency, 90% or Higher at 500μA
  • Typical 850mA Output Current at 5.0V (VIN = 3.0V)
  • 400mV to 5.5V Input Range, Up to 5.35V in Regulation
  • 880mV Minimum Startup Voltage
  • Single Resistor Adjustable Output Voltage
    • 2.3V to 5.2V Output Voltage Range with 100mV Steps
    • 5.4V, 5.5V Output Voltage Settings Available
  • 2A Peak Inductor Current Limit
  • Thermal Shutdown Protection
  • Multiple Package Options:
    • 1.58mm x 0.89mm, 0.4mm pitch, 6-bump (3 x 2) WLP
    • 2mm x 2mm 8-pin TDFN
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Clinical Instrumentation
  • Consumer
  • Emergency Lighting
  • Industrial
  • IoT Sensors
  • Medical
  • Near-Band IoT
  • Wearable Audio
  • WiFi Module

Description

The MAX17227A is a nanoPower boost converter capable of delivering load up to 2A peak inductor current and offering True Shutdown™, cycle-by-cycle inductor current limit, short-circuit, and thermal protection. During shutdown, current drawn from the input pin is 1nA. The MAX17227A offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load and line range. The MAX17227A is ideal for battery-powered applications where long battery life is a must and high efficiency is required at all power levels.

The MAX17227A utilizes adjustable on-time, pulse-frequency-modulation (PFM) control scheme that consumes ultra-low quiescent current. The MAX17227A features True Shutdown mode where the output disconnects from the input with no forward or reverse-current. This saves precious energy from the battery for systems that dynamically turn on and off by having the ability to startup into a precharged output capacitor.

The MAX17227A is offered in a space-saving and costeffective 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 8-pin, 2mm x 2mm TDFN packages. The operating temperature range is from -40°C to +125°C.

Simplified Block Diagram

MAX17227A: Typical Operating Circuit MAX17227A: 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.