MAX17223 반도체 회로 부품 판매점
nanoPower Synchronous Boost Converter
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 Maxim Integrated |
MAX17220‒MAX17225
EVALUATION KIT AVAILABLE
400mV to 5.5V Input, nanoPower Synchronous
Boost Converter with True Shutdown
General 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), 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 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.
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
Benefits and 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: 225mA ILIM
• MAX17221/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)
Typical Operating Circuit
Ordering Information appears at end of data sheet.
True Shutdown is a trademark of Maxim Integrated Products, Inc.
19-8753; Rev 1; 4/17
MAX17220–MAX17225
400mV to 5.5V Input, nanoPower Synchronous
Boost Converter with True Shutdown
Absolute Maximum Ratings
OUT, EN, IN to GND................................................-0.3V to +6V
RSEL to GND................. -0.3V to Lower of (VOUT + 0.3V) or 6V
LX RMS Current WLP...............................-1.6Arms to +1.6Arms
LX RMS Current µDFN...................................-1Arms to +1Arms
Continuous Power Dissipation (TA = 70°C)
WLP (derate 10.5mW/°C above +70°C).......................840mW
Continuous Power Dissipation (TA = 70°C)
µDFN (derate 4.5mW/°C above +70°C)....................357.8mW
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -40°C to +150°C
Soldering Temperature (reflow)........................................ +260°C
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 Information
µDFN
PACKAGE CODE
Outline Number
Land Pattern Number
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θJA)
Junction to Case (θJC)
WLP
21-0164
90-0004
223.6°C/W
122°C/W
L622+1C
PACKAGE CODE
Outline Number
Land Pattern Number
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θJA)
Junction to Case (θJC)
N60E1+1
21-100128
Refer to Application Note 1891
95.15°C/W
N/A
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, 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.
www.maximintegrated.com
Maxim Integrated │ 2
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제조업체: Maxim Integrated
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MAX17223 converter
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[ MAX17223.PDF ]
[ MAX17223 다른 제조사 검색 ]
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