Specification	MAX653CSA+

Current - Output	225 mA
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	11.5 V
Voltage - Input (Min) [Min]	4 V
Voltage - Output (Max) [Max]	11.5 V
Voltage - Output (Min/Fixed)	3 V
Voltage - Output (Min/Fixed)	1.3 V

MAX653 Series

Part	Voltage - Input (Max) [Max]	Function	Current - Output	Output Configuration	Mounting Type	Package / Case	Voltage - Input (Min) [Min]	Output Type	Topology	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Supplier Device Package	Number of Outputs	Voltage - Output (Max) [Max]	Package / Case	Package / Case
Analog Devices Inc./Maxim Integrated MAX653CPA+	11.5 V	Step-Down	225 mA	Positive	Through Hole	8-DIP (0.300" 7.62mm)	4 V	Adjustable (Fixed)	Buck	0 °C	70 °C	3 V	1.3 V	8-PDIP	1	11.5 V
Analog Devices Inc./Maxim Integrated MAX653ESA+	11.5 V	Step-Down	225 mA	Positive	Surface Mount	8-SOIC	4 V	Adjustable (Fixed)	Buck	-40 ¯C	85 C	3 V	1.3 V	8-SOIC	1	11.5 V	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated MAX653CSA+T	11.5 V	Step-Down	225 mA	Positive	Surface Mount	8-SOIC	4 V	Adjustable (Fixed)	Buck	0 °C	70 °C	3 V	1.3 V	8-SOIC	1	11.5 V	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated MAX653CSA+	11.5 V	Step-Down	225 mA	Positive	Surface Mount	8-SOIC	4 V	Adjustable (Fixed)	Buck	0 °C	70 °C	3 V	1.3 V	8-SOIC	1	11.5 V	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated MAX653ESA+T	11.5 V	Step-Down	225 mA	Positive	Surface Mount	8-SOIC	4 V	Adjustable (Fixed)	Buck	-40 ¯C	85 C	3 V	1.3 V	8-SOIC	1	11.5 V	0.154 in	3.9 mm

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	$ 5.36
		7500	$ 5.36
	Tube	1	$ 6.16
		10	$ 4.16
		25	$ 3.64
		100	$ 3.06
		250	$ 2.77
		500	$ 2.60
		1000	$ 2.46
		2500	$ 2.31

Description

General part information

MAX653 Series

The MAX639/MAX640/MAX653 step-down switching regulators provide high efficiency over a wide range of load currents, delivering up to 225mA. A current-limiting pulse-frequency-modulated (PFM) control scheme gives the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency at heavy loads), while using only 10µA of supply current (vs. 2mA to 10mA for PWM converters). The result is high efficiency over a wide range of loads.The MAX639/MAX640/MAX653 input range is 4V to 11.5V, and the devices provide lower preset output voltages of 5V, 3.3V, and 3V, respectively. Or, the output can be user-adjusted to any voltage from 1.3V to the input voltage.The MAX639/MAX640/MAX653 have an internal 1A power MOSFET switch, making them ideal for minimum-component, low- and medium-power applications. For increased output drive capability, use the MAX649/MAX651/MAX652 step-down controllers, which drive an external P-channel FET to deliver up to 5W.Applications5V to 3.3V Conversion9V Battery to 5V, 3.3V, or 3V ConversionHigh-Efficiency Linear Regulator ReplacementPortable Instruments and Handy-Terminals