Details, datasheet, quote on part number: MAX17225
PartMAX17225
Category
Title400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
DescriptionThe MAX17220MAX17225 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), 500mA (MAX17221/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 MAX17220MAX17225 offer ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. The MAX17220MAX17225 are ideal for battery applications where long battery life is a must.
CompanyMaxim Integrated Products
DatasheetDownload MAX17225 datasheet
  
MAX17225 photo

 

Features, Applications

to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

The 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 ShutdownTM. 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 (MAX17221/MAX17222/ MAX17223), and 1A (MAX17224/MAX17225) peak inductor current limits allow flexibility when choosing inductors. The MAX17220/MAX17222/MAX17224 versions have poststartup 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 MAX17220MAX17225 are ideal for battery applications where long battery life is a must.

300nA Quiescent Supply Current Into OUT True Shutdown Mode 0.5nA Shutdown Current Output Disconnects from Input No Reverse Current with VOUT 5V 95% Peak Efficiency to 5.5V Input Range 0.88V Minimum Startup Voltage to 5V Output Voltage Range 100mV/Step Single 1% Resistor Selectable Output 225mA, 500mA, and 1A Peak Inductor Current Limit MAX17220: 225mA ILIM MAX17221/MAX17222/MAX17223: 500mA ILIM MAX17224/MAX17225: 1A ILIM MAX17220/MAX17222/MAX17224 Enable Transient Protection (ETP) 2mm 6-Pin DFN 1.4mm 6-Bump WLP 3, 0.4mm Pitch)

Applications

Optical Heart-Rate Monitoring (OHRM) LED Drivers Supercapacitor Backup for RTC/Alarm Buzzers Primary-Cell Portable Systems

Tiny, Low-Power IoT Sensors Secondary-Cell Portable Systems Wearable Devices Battery-Powered Medical Equipment Low-Power Wireless Communication Products

True Shutdown is a trademark of Maxim Integrated Products, Inc.
to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

OUT, EN, to +6V RSEL to GND................. -0.3V to Lower of (VOUT 6V LX RMS Current +1.6Arms LX RMS Current to +1Arms Continuous Power Dissipation (TA = 70C) WLP (derate 10.5mW/C above +70C).......................840mW

Continuous Power Dissipation (TA = 70C) DFN (derate 4.5mW/C above +70C)....................357.8mW Operating Temperature Range............................ to +85C Junction Temperature.......................................................+150C Storage Temperature Range............................. to +150C Soldering Temperature (reflow)........................................ +260C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

PACKAGE CODE Outline Number Land Pattern Number Thermal Resistance, Four-Layer Board: Junction to Ambient (JA) N60E1+1 21-100128 Refer to Application Note 1891 95.15C/W N/A Junction to Case (JC) PACKAGE CODE Outline Number Land Pattern Number Thermal Resistance, Four-Layer Board: Junction to Ambient (JA) Junction to Case (JC) 90-0004 L622+1C

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that or in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.

to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

(VIN = VEN = 1.5V, VOUT to +85C, typical values are = +25C, unless otherwise noted. (Note 1)) PARAMETER Minimum Input Voltage Input Voltage Range Minimum Startup Input Voltage Output Voltage Range Output Accuracy, LPM Output Accuracy, Ultra-Low-Power Mode SYMBOL VIN_MIN VIN VIN_STARTUP VOUT ACCLPM ACCULPM CONDITIONS Runs from output after startup, IOUT = 1mA Guaranteed by LX Maximum On-Time RL 3k, Typical Operating Circuit, 25C , See RSEL Selection table. For VIN < VOUT target. Note 2. VOUT falling, when LX switching frequency > 1MHz. Note 3. VOUT falling, when LX switching frequency > 1kHz. Note EN = open after startup. EN = VIN. TA= 25C. Not switching, VOUT 104% of VOUT target. EN = open after startup. EN = VIN. = 85C Not switching, VOUT 104% of VOUT target. EN = Open after startup. EN = VIN. Not switching, VOUT 104% of VOUT target. Total current includes IN, LX, and EN. 25C. MAX17220/2/3/4/5, RL= 3k, VOUT = VEN 0V. MAX17221, RL= open,VE 25C. MAX17220/2/3/4/5, RL= RL = open, VEN = 0V, VIN = VLX = 3V. Includes LX and IN leakage. 25C. MAX17220 IPEAK DC tON tOFF Note 5 Note 6 Note 6 Note 6 VOUT = 1.8V VOUT = 3V VOUT = 1.8V VOUT MAX17221/2/3 MAX17224/5 MIN TYP MAX UNITS mV

Quiescent Supply Current Into IN Total Quiescent Supply Current into LX EN

Shutdown Current Into IN Total Shutdown Current into IN LX Inductor Peak Current Limit LX Maximum Duty Cycle LX Maximum On-Time LX Minimum Off-Time


 

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