Integrated Circuits (ICs)

MAX8640YEXT19+T

Obsolete

Analog Devices Inc./Maxim Integrated

IC REG BUCK 1.9V 500MA SC70-6

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Integrated Circuits (ICs)

MAX8640YEXT19+T

Obsolete

Analog Devices Inc./Maxim Integrated

IC REG BUCK 1.9V 500MA SC70-6

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MAX8640YEXT19+T

Current - Output	500 mA
Frequency - Switching	2 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Positive
Package / Case	SOT-363, SC-88, 6-TSSOP
Supplier Device Package	SC-70-6
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Min/Fixed) [Min]	1.9 V

MAX8640 Series

Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters

Part	Supplier Device Package	Number of Outputs	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Current - Output	Output Configuration	Voltage - Input (Max) [Max]	Frequency - Switching	Package / Case	Function	Voltage - Output (Min/Fixed)	Topology	Supplier Device Package [y]	Supplier Device Package [x]	Voltage - Output (Min/Fixed) [Min]
Analog Devices Inc./Maxim Integrated MAX8640ZEXT15+T	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	3.9 MHz	6-TSSOP SC-88 SOT-363	Step-Down	1.5 V	Buck
Analog Devices Inc./Maxim Integrated MAX8640YEXT16+T	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	2 MHz	6-TSSOP SC-88 SOT-363	Step-Down	1.6 V	Buck
Analog Devices Inc./Maxim Integrated MAX8640ZEXT18+T	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	4 MHz	6-TSSOP SC-88 SOT-363	Step-Down	1.8 V	Buck
Analog Devices Inc./Maxim Integrated MAX8640YELT13+
Analog Devices Inc./Maxim Integrated MAX8640YELT15+T
Analog Devices Inc./Maxim Integrated MAX8640YEXT13+
Analog Devices Inc./Maxim Integrated MAX8640ZEXT12+T	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	3.6 MHz	6-TSSOP SC-88 SOT-363	Step-Down	1.2 V	Buck
Analog Devices Inc./Maxim Integrated MAX8640YELT12+T	6-µDFN	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	1.8 MHz	6-WFDFN	Step-Down	1.2 V	Buck	1	1.5
Analog Devices Inc./Maxim Integrated MAX8640YEXT19+T	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	2 MHz	6-TSSOP SC-88 SOT-363	Step-Down		Buck			1.9 V
Analog Devices Inc./Maxim Integrated MAX8640ZEXT13+	SC-70-6	1	2.7 V	85 C	-40 ¯C	Surface Mount	500 mA	Positive	5.5 V	3.7 MHz	6-TSSOP SC-88 SOT-363	Step-Down		Buck			1.3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 2.47

Description

General part information

MAX8640 Series

The MAX8640Y/MAX8640Z step-down converters are optimized for applications where small size, high efficiency, and low output ripple are priorities. They utilize a proprietary PWM control scheme that optimizes the switching frequency for high efficiency with small external components and maintains low output ripple voltage at all loads. The MAX8640Z switches at up to 4MHz to allow a tiny 1µH inductor and 2.2µF output capacitor. The MAX8640Y switches at up to 2MHz for higher efficiency while still allowing small 2.2µH and 4.7µF components. Output current is guaranteed up to 500mA, while typical quiescent current is 28µA. Factory-preset output voltages from 0.8V to 2.5V eliminate external feedback components.Internal synchronous rectification greatly improves efficiency and replaces the external Schottky diode required in conventional step-down converters. Internal fast soft-start eliminates inrush current so as to reduce input capacitor requirements.The MAX8640Y/MAX8640Z are available in the tiny 6-pin, SC70 (2.0mm x 2.1mm) and µDFN (1.5mm x 1.0mm) packages. Both packages are lead-free.ApplicationsCell Phones, PDAs, DSCs, MP3sI/O PowerMicroprocessor/DSP Core PowerOther Handhelds Where Space Is Limited

Documents

Technical documentation and resources