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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX40203 Datasheet

1A Ideal Diodes

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MAX40203
Ultra-Tiny nanoPower, 1A Ideal Diodes
with Ultra-Low-Voltage Drop
General Description
The MAX40203 is an ideal diode current-switch with
forward voltage drop that is approximately an order
of magnitude smaller than that of Schottky diodes.
When forward biased and enabled, the MAX40203
conducts with 90mV of voltage drop while carrying
currents as high as 1A. During a short-circuit or a fast
power-up, the device limits its output current to 2A. The
MAX40203 thermally protects itself and any downstream
circuitry from overcurrent conditions.
This ideal diode operates from a supply voltage of 1.2V
to 5.5V. The supply current is relatively constant with load
current, and is typically 300nA. When disabled (EN = low),
the ideal diode blocks voltages up to 6V in either direction,
makes it suitable for use in most low-voltage, portable
electronic devices.
The MAX40203 is available in a tiny, 0.77mm x 0.77mm,
4-bump WLP, with a 0.35mm bump pitch and a 5-pin
SOT-23 package. It is specified over the automotive
-40°C to +125°C temperature range.
Applications
● Notebook and Tablet Computers
● Battery Backup Systems
● Powerline Fault Recorders
● Cellular Phones
● Electronic Toys
● USB-Powered Peripherals
● Portable Medical Devices
Benefits and Features
● Lower Voltage Drop in Portable Applications
• 14mV Forward Drop at 1mA (WLP)
• 16mV Forward Drop at 100mA (WLP)
• 43mV Forward Drop at 500mA (WLP)
• 90mV Forward Drop at 1A (WLP)
● Longer Battery Life
• Low Leakage When Reverse-Biased from VDD:
• 10nA (Typ)
• Low Supply Quiescent Current
• 300nA (Typ), 500nA (Max)
● Smaller Footprint Than Larger Schottky Diodes
• Tiny 0.77mm x 0.77mm 4-Bump WLP
• SOT23-5 Package
● Wide Supply Voltage Range: 1.2V to 5.5V
● Thermally Self-Protecting
● -40°C to +125°C Operating Temperature Range
Ordering Information appears at end of data sheet.
Simplified Block Diagram
VDD OUT
EN
GND
19-100354; Rev 1; 3/19


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX40203 Datasheet

1A Ideal Diodes

No Preview Available !

MAX40203
Ultra-Tiny nanoPower, 1A Ideal Diodes
with Ultra-Low-Voltage Drop
Absolute Maximum Ratings
Any Pin to GND........................................................-0.3V to +6V
Continuous Current into EN................................................10mA
Continuous Current Flowing
Between VDD and OUT (WLP)..........................................1.5A
Continuous Current Flowing
Between VDD and OUT (SOT).............................................1A
Continuous Power Dissipation (TA = +70°C)
(WLP, derate 9.58mW/°C above +70°C)......................766mW
Continuous Power Dissipation (TA = +70°C)
(SOT, derate 3.90mW/°C above +70°C).................312.60mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -60°C to +165°C
Lead Temperature (soldering, 10s).................................. +300°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
4 WLP
Package Code
Outline Number
Land Pattern Number
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θJA)
Junction to Case (θJC)
N40F0+1
21-100273
Refer to Application Note 1891
104.41°C/W
N/A
5 SOT23
Package Code
Outline Number
Land Pattern Number
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θJA)
Junction to Case (θJC)
U5+2
21-0057
90-0174
255.90°C/W
81°C/W
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


Part Number MAX40203
Description 1A Ideal Diodes
Maker Maxim Integrated
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MAX40203 Datasheet PDF






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