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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 816kB) Download   E-Mail

Description

The MAX15014–MAX15017 combine a step-down DCDC converter and a 50mA, low-quiescent-current low-dropout (LDO) regulator. The LDO regulator is ideal for powering always-on circuitry in automotive applications. The DC-DC converter input voltage range is 4.5V to 40V for the MAX15015/MAX15016, and 7.5V to 40V for the MAX15014/MAX15017. The DC-DC converter output is adjustable from 1.26V to 32V and can deliver up to 1A of load current. These devices utilize a feed-forward voltage-mode control scheme for good noise immunity in the high-voltage switching environment and offer external compensation allowing for maximum flexibility with a wide selection of inductor values and capacitor types. The switching frequency is internally fixed at 135kHz and 500kHz, depending on the version chosen. Moreover, the switching frequency can be synchronized to an external clock signal through the SYNC input. Light load efficiency is improved by automatically switching to a pulse-skip mode. The soft-start time is adjustable with an external capacitor. The DC-DC converter can be disabled independent of the LDO, thus reducing the quiescent current to 47µA (typ). The LDO linear regulators operate from 5V to 40V and deliver a guaranteed 50mA load current. The devices feature a preset output voltage of 5V (MAX1501_A) or 3.3V (MAX1501_B). Alternatively, the output voltage can be adjusted from 1.5V to 11V by using an external resistive divider. The LDO section also features an active-low RESET output with adjustable timeout period. Protection features include cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. All devices are available in a space-saving, high-power (2.86W), 36-pin TQFN package and are rated for operation over the -40°C to +125°C automotive temperature range.

An evaluation kit is available:  MAX15015AEVKIT  

Key Features		Applications/Uses
Combined DC-DC Converters and Low-Quiescent-Current LDO Regulators 1A DC-DC Converters Operate from 4.5V to 40V (MAX15015/MAX15016) or 7.5V to 40V (MAX15014/MAX15017) Switching Frequency of 135kHz (MAX15014/MAX15016) or 500kHz (MAX15015/MAX15017) 50mA LDO Regulator Operates from 5V to 40V Independent of the DC-DC Converter 47µA Quiescent Current with DC-DC Converter Off and LDO On 6µA System Shutdown Current Frequency Synchronization Input Shutdown/Enable Inputs Adjustable Soft-Start Time Open-Drain Active-Low RESET Output with Programmable Timeout Delay Thermal Shutdown and Output Short-Circuit Protection Space-Saving (6mm x 6mm) Thermally Enhanced 36-Pin TQFN Package		Automotive Body Control Modules Automotive Instrument Cluster Car Radios Navigation Systems

Diagram

Typical Application Circuit

Evaluation Kits

MAX15015AEVKIT

Design Guides

Automotive (PDF)

Reliability Reports

Show FIT data for: MAX15014 MAX15015 MAX15016 MAX15017 Request Reliability Report for: MAX15015 MAX15014 MAX15016 MAX15017

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: 1-17 of 17

MAX15014	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15014AATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15014BATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15014AATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15014BATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15015	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15015EVKIT			Active	Land Pattern: Not Available		See data sheet
MAX15015AATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15015AATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15015BATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15015BATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15016	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15016AATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15016AATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15016BATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15016BATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15017	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15017AATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15017AATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX15017BATX+			Active	TQFN;36 pin;37.2 mm² Outline Drawing: 21-0141 (PDF) Land Pattern: 90-0050 (PDF) Use pkgcode/variation: T3666+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15017BATX+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet

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