Specification	MAX887HESA+

Current - Output	600 mA
Frequency - Switching [Max]	350 kHz
Frequency - Switching [Min]	250 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	11 V
Voltage - Input (Min) [Min]	3.5 V
Voltage - Output (Max) [Max]	10.5 V
Voltage - Output (Min/Fixed)	1.25 V

MAX887 Series

100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter

Part	Supplier Device Package	Package / Case	Package / Case	Package / Case	Voltage - Input (Min) [Min]	Output Type	Voltage - Output (Min/Fixed)	Function	Current - Output	Mounting Type	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Voltage - Output (Max) [Max]	Number of Outputs	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]
Analog Devices Inc./Maxim Integrated MAX887HESA+T	8-SOIC	0.154 in	8-SOIC	3.9 mm	3.5 V	Adjustable	1.25 V	Step-Down	600 mA	Surface Mount	Buck	85 C	-40 ¯C	Positive	10.5 V	1	11 V	350 kHz	250 kHz
Analog Devices Inc./Maxim Integrated MAX887HESA+	8-SOIC	0.154 in	8-SOIC	3.9 mm	3.5 V	Adjustable	1.25 V	Step-Down	600 mA	Surface Mount	Buck	85 C	-40 ¯C	Positive	10.5 V	1	11 V	350 kHz	250 kHz
Analog Devices Inc./Maxim Integrated MAX8873TEUK

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	3089	$ 6.45
		48500	$ 6.45
	Tube	1	$ 9.79
		10	$ 6.80
		25	$ 6.03
		100	$ 5.16
		250	$ 4.74
		500	$ 4.49
		1000	$ 4.27

Description

General part information

MAX887 Series

The MAX887 high-efficiency, step-down DC-DC converter provides an adjustable output from 1.25V to 10.5V. It accepts inputs from 3.5V to 11V and delivers 600mA. Operation to 100% duty cycle minimizes dropout voltage (300mV typ at 500mA). Synchronous rectification reduces output rectifier losses, resulting in efficiency as high as 95%.Fixed-frequency pulse-width modulation (PWM) reduces noise in sensitive communications applications. Using a high-frequency internal oscillator allows tiny surface-mount components to reduce PC board area, and eliminates audio-frequency interference. A SYNC input allows synchronization to an external clock to avoid interference with sensitive RF and data-acquisition circuits.The MAX887 features current-mode operation for superior load/line-transient response. Cycle-by-cycle current limiting protects the internal MOSFET and rectifier. A low-current (2.5µA typ) shutdown mode conserves battery life.ApplicationsCell PhonesComputer PeripheralsDistributed Power SystemsPersonal CommunicatorsPortable Instrumentation

Documents

Technical documentation and resources

Package Drawing - Small-Outline IC, Narrow (0.15in)

Package Drawing