MAX17220
400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
nanoPower Boost Converter that Extends Battery Life and Reduces Solution Size
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Key Features
Applications/Uses
| VIN (V) (min) | 0.4 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 1.8 |
| VOUT1 (V) (max) | 5 |
| IOUT1 (A) (max) | 0.085 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| IQ (mA) (typ) | 0.00030 |
| Shutdown Mode Supply Current (µA) (typ) | 0.001 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2000 |
| Design Tools | EE-Sim |
| Package/Pins | THIN WLP/6 UDFN-CU/6 |
| Budgetary Price (See Notes) | 0.94 |
Simplified Block Diagram
Technical Docs
Customer Testimonial: WHOOP ›
Operate Your Design from a Single Battery, with the Right Converter
Essential Analog Toolkit: Boost Regulators
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
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Parameters
| VIN (V) (min) | 0.4 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 1.8 |
| VOUT1 (V) (max) | 5 |
| IOUT1 (A) (max) | 0.085 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| IQ (mA) (typ) | 0.00030 |
| Shutdown Mode Supply Current (µA) (typ) | 0.001 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2000 |
| Design Tools | generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=6942', '') |
| Package/Pins | THIN WLP/6 UDFN-CU/6 |
| Budgetary Price (See Notes) | 0.94 |
Key Features
- 300nA Quiescent Supply Current Into OUT
- True Shutdown Mode
- 0.5nA Shutdown Current
- Output Disconnects from Input
- No Reverse Current with VOUT 0V to 5V
- 95% Peak Efficiency
- 400mV to 5.5V Input Range
- 0.88V Minimum Startup Voltage
- 1.8V to 5V Output Voltage Range
- 100mV/Step
- Single 1% Resistor Selectable Output
- 225mA, 500mA, and 1A Peak Inductor Current Limit
- MAX17220/MAX17221: 225mA ILIM
- MAX17222/MAX17223: 500mA ILIM
- MAX17224/MAX17225: 1A ILIM
- MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP)
- 2mm x 2mm 6-Pin µDFN
- 0.88mm x 1.4mm 6-Bump WLP (2 x 3, 0.4mm Pitch)
Applications/Uses
- Battery-Powered Medical Equipment
- Low-Power Wireless Communication Products
- Optical Heart-Rate Monitoring (OHRM) LED Drivers
- Primary-Cell Portable Systems
- Secondary-Cell Portable Systems
- Supercapacitor Backup for Real-Time Clock (RTC)/Alarm Buzzers
- Tiny, Low-Power IoT Sensors
- Wearable Devices
Description
The MAX17220–MAX17225 is a family of ultra-low quiescent current boost (step-up) DC-DC converters with a 225mA/0.5A/1A peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The 225mA (MAX17220/MAX17221), 500mA (MAX17222/MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220–MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220–MAX17225 are ideal for battery applications where long battery life is a must.
Design Solution: Triple Punch Extends the Life of Your Smart Factory Indoor BLE Beacon ›
Design Solution: Make Your IoT Device Last Longer with a nanoPower Boost Converter ›
Design Solution: How to Maximize Your Wireless Sensor’s Runtime ›
Also see: nanoPower Technology
 nanoPower Boost Converter Demo |  Sometimes it’s Smart to Have a Low IQ |  Read white paper › |
Simplified Block Diagram
MAX17220, MAX17221, MAX17222, MAX17223, MAX17224, MAX17225: Typical Operating Circuit
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur 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.
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