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All versions are being discontinued and are subject to Last Time Buy, after which new orders can not be placed. See Ordering Information for recommended replacements.

Data Sheet

FULL DATA SHEET (PDF, 136kB) Download   E-Mail

Description

The MAX761/MAX762 step-up switching regulators provide high efficiency over a wide range of load currents, delivering up to 150mA. A unique, current-limited pulse-frequency-modulated (PFM) control scheme gives the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency with heavy loads), while using less than 110µA of supply current (vs. 2mA to 10mA for PWM converters). The result is high efficiency over a wide range of loads. The MAX761/MAX762 input voltage range is 2V to 16.5V. Output voltages are preset to 12V (MAX761) and 15V (MAX762), or they can be set with two external resistors. With a 5V input, the MAX761 guarantees a 12V, 150mA output. Its high efficiency, low supply current, fast start-up time, SHDN controlling capability, and small size make the MAX761 ideal for powering flash memory. The MAX761/MAX762 have an internal 1A power MOSFET, making them ideal for minimum-component, low- and medium-power applications. These devices use tiny external components, and their high switching frequencies (up to 300kHz) allow for small surface-mount magnetics. For increased output drive capability or higher output voltages, use the MAX770-MAX773, which are similar in design to the MAX761/MAX762, but drive external power MOSFETs. For stepping up to 5V, see the MAX756/MAX757 and MAX856-MAX859 data sheets.

An evaluation kit is available:  MAX761EVKIT  

Key Features		Applications/Uses
High Efficiency for a Wide Range of Load Currents 12V/150mA Flash Memory Programming Supply 110µA Max Supply Current 5µA Max Shutdown Supply Current 2V to 16.5V Input Voltage Range 12V (MAX761), 15V (MAX762) or Adjustable Output Current-Limited PFM Control Scheme 300kHz Switching Frequency Internal, 1A, N-Channel Power FET LBI/LBO Low-Battery Comparator		Battery-Powered Applications Flash Memory Programming High-Efficiency DC-DC Converters PCMCIA Cards

Diagram

Typical Operating Circuit

Application Notes

Application Note 136: Three-Input Supply Powers 3.3 Portables - MAX761 Application Note 974: Discrete Charge Pump Adds -12V Output to +12V Boost Converter - MAX761 Application Note 1061: ±5V Regulator Accepts Inputs From -2V to -12V - MAX761 Application Note 1810: Low-Cost Step-Up/Step-Down Converter Accepts 2V to 16V Inputs - MAX761 Application Note 1910: -12V to -5V/400mA Regulator Ensures Sequencing With 5V Rail - MAX761

Evaluation Kits

MAX761EVKIT

Design Guides

Thermal Management (PDF) Low-Power Notebook ICs (PDF)

Reliability Reports

Show FIT data for: MAX761 MAX762 Request Reliability Report for: MAX761 MAX762

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-28 of 28

MAX761	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX761MJA			Last Time Buy	MAX618	CDIP(N);8 pin;83 mm² Outline Drawing: 21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX761C/D			Last Time Buy	MAX618	DICE SALES;NA pin;0 mm² Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX761CPA			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX761CPA+			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX761EPA			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX761EPA+			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX761CSA			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX761CSA-T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX761CSA+			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX761CSA+T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX761ESA			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX761ESA-T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX761ESA+			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX761ESA+T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX762MJA			Last Time Buy	MAX618	CDIP(N);8 pin;83 mm² Outline Drawing: 21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX762C/D			Last Time Buy	MAX618	DICE SALES;NA pin;0 mm² Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX762EPA+			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762CPA+			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762CPA			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX762EPA			Last Time Buy	MAX618	PDIP(N);8 pin;82 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX762CSA			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX762CSA-T			Last Time Buy	MAX618	Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX762CSA+			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762CSA+T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762ESA			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX762ESA-T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-5*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX762ESA+			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX762ESA+T			Last Time Buy	MAX618	SOIC(N);8 pin;31 mm² Outline Drawing: 21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Related Products

MAX1771 12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller MAX756, MAX757 3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters MAX761, MAX762 12V/15V or Adjustable, High-Efficiency, Low-IQ, Step-Up DC-DC Converters MAX856, MAX857, MAX858, MAX859 3.3V/5V or Adjustable Output, Step-Up DC-DC Converters

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