MAX1797EUA+T

Active

Analog Devices Inc./Maxim Integrated

LOW-SUPPLY CURRENT, STEP-UP DC-DC CONVERTERS WITH TRUE SHUTDOWN

Find alt

Alpha

MAX1797EUA+T

Active

Analog Devices Inc./Maxim Integrated

LOW-SUPPLY CURRENT, STEP-UP DC-DC CONVERTERS WITH TRUE SHUTDOWN

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

MAX1797 Series

The MAX1795/MAX1796/MAX1797 are high-efficiency, step-up DC-DC converters intended for small portable hand-held devices. These devices feature Maxim's True Shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. All three devices also feature Maxim's proprietary LX-damping circuitry for reduced EMI in noise-sensitive applications. For additional in-system flexibility, a battery monitoring comparator (LBI/LBO) remains active even when the DC-DC converter is in shutdown.The input voltage range is +0.7V to VOUT, where VOUTcan be set from +2V to +5.5V. Startup is guaranteed from +0.85V. The MAX1795/MAX1796/MAX1797 have a preset, pin-selectable 5V or 3.3V output. The output can also be adjusted to other voltages, using two external resistors. The three devices differ only in their current limits, allowing optimization of external components for different loads: the MAX1795, MAX1796, and MAX1797 have current limits of 0.25A, 0.5A, and 1A, respectively. All devices are packaged in a compact, 8-pin µMAX® package that is only 1.09mm tall and half the size of an 8-pin SO.ApplicationsPDAs and PalmtopsPortable Digital Audio PlayersPortable TerminalsWireless Handsets

Technical Specifications

Parameters and characteristics for this part

Specification	MAX1797EUA+T

Current - Output	800 mA
Frequency - Switching	500 kHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable (Programmable)
Package Length	0.118 in
Package Name	8-uMAX/uSOP, 8-TSSOP, 8-MSOP
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Boost
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	1 V
Voltage - Output (Fixed Options)	5V, 3.3V
Voltage - Output (Max)	5.5 V
Voltage - Output (Min)	2 V

MAX1797 Series

Low-Supply Current, Step-Up DC-DC Converters with True Shutdown

Part	Voltage - Input (Max)	Voltage - Output (Fixed Options)	Voltage - Output (Min)	Output Type	Voltage - Output (Max)	Output Configuration	Function	Synchronous Rectifier	Current - Output	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Min)	Topology	Package Width	Package Name	Package Length	Frequency - Switching	Mounting Type	Number of Outputs	Total Output Count	Non-Isolated Output Count	Supplied Contents	Board Type	Contents	Regulator Topology	Main Purpose	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Utilized IC / Part	Voltage - Output
Analog Devices Inc./Maxim Integrated MAX1797EUA-T	5.5 V	3.3V 5V	2 V	Adjustable (Programmable)	5.5 V	Positive	Step-Up	Yes	800 mA	85 °C	-40 °C	1 V	Boost	3 mm	8-TSSOP 8-MSOP 8-uMAX/uSOP	0.118 in	500 kHz	Surface Mount	1
Analog Devices Inc./Maxim Integrated MAX1797EUA-TG074	5.5 V	3.3V 5V	2 V	Adjustable (Fixed)	5.5 V	Positive	Step-Up	Yes	550 mA	85 °C	-40 °C	0.7 V	Boost	3 mm	8-TSSOP 8-MSOP 8-µMAX	0.118 in	500 kHz	Surface Mount	1
Analog Devices Inc./Maxim Integrated MAX1797EVKIT				Non-Isolated					500 mA											1	1 count	Board(s)	Fully Populated	Board	Boost	DC/DC Step Up	2 V	3.3 V	MAX1797	3.3 V
Analog Devices Inc./Maxim Integrated MAX1797EUA+T	5.5 V	3.3V 5V	2 V	Adjustable (Programmable)	5.5 V	Positive	Step-Up	Yes	800 mA	85 °C	-40 °C	1 V	Boost	3 mm	8-TSSOP 8-MSOP 8-uMAX/uSOP	0.118 in	500 kHz	Surface Mount	1
Analog Devices Inc./Maxim Integrated MAX1797EUA	5.5 V	3.3V 5V	2 V	Adjustable (Programmable)	5.5 V	Positive	Step-Up	Yes	800 mA	85 °C	-40 °C	1 V	Boost	3 mm	8-TSSOP 8-MSOP 8-uMAX/uSOP	0.118 in	500 kHz	Surface Mount	1
Analog Devices Inc./Maxim Integrated MAX1797EUA+	5.5 V	3.3V 5V	2 V	Adjustable (Programmable)	5.5 V	Positive	Step-Up	Yes	800 mA	85 °C	-40 °C	1 V	Boost	3 mm	8-TSSOP 8-MSOP 8-uMAX/uSOP	0.118 in	500 kHz	Surface Mount	1

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Package Drawing - Micro-MAX, Thin Shrink Small-Outline

MAX1795-MAX1797: Low-Supply Current, Step-Up DC-DC Converters with True Shutdown Data Sheet (Rev.0)

MAX1797EUA+T | Datasheet