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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 664kB) Download   E-Mail

Description

The MAX5090A/B/C easy-to-use, high-efficiency, high-voltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310µA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency at light loads. The MAX5090 includes internal frequency compensation simplifying circuit implementation. The device can also be synchronized with external system clock frequency in a noise-sensitive application. The MAX5090 uses an internal low on-resistance and a high-voltage DMOS transistor to obtain high efficiency and reduce overall system cost. This device includes undervoltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and overtemperature shutdown. The MAX5090 delivers up to 2A output current. External shutdown is included, featuring 19µA (typ) shutdown current. The MAX5090A/MAX5090B versions have fixed output voltages of 3.3V and 5V, respectively, while the MAX5090C features an adjustable 1.265V to 11V output voltage. The MAX5090 is available in a space-saving 16-pin thin QFN package (5mm x 5mm) and operates over the automotive temperature range (-40°C to +125°C).

An evaluation kit is available:  MAX5090EVKIT  

Key Features		Applications/Uses
Wide Input Voltage Range: 6.5V to 76V Fixed (3.3V, 5V) and Adjustable (1.265V to 11V) Output-Voltage Versions 2A Output Current Efficiency Up to 92% Internal 0.26 High-Side DMOS FET 310µA Quiescent Current at No Load 19µA Shutdown Current Internal Frequency Compensation Fixed 127kHz Switching Frequency External Frequency Synchronization Thermal Shutdown and Short-Circuit Current Limit -40°C to +125°C Automotive Temperature Range 16-Pin (5mm x 5mm) Thin QFN Package Capable of dissipating 2.67W at +70°C		Automotive Distributed Power Industrial

Diagram

Typical Operating Circuit

Evaluation Kits

MAX5090EVKIT

Design Guides

Automotive (PDF)

Reliability Reports

Reliability Report: MAX5090.pdf Show FIT data for: MAX5090 Request Reliability Report for: MAX5090A MAX5090B MAX5090C

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: 1-16 of 16

MAX5090A	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5090AATE/V+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5090AATE/V+			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090AATE			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5090AATE+			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090AATE+T			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090AATE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5090B	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5090BATE			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5090BATE+			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090BATE+T			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090BATE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5090C	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5090CATE/V+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5090CATE/V+			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090CATE			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655-3*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX5090CATE+			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090CATE+T			Active	TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5090CATE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet

More Information

New Product Press Release 2006-03-13  Product Ad: Download

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