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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 348kB) Download   E-Mail

Description

The MAX15027/MAX15028 low-dropout linear regulators operate from input voltages as low as 1.425V and deliver up to 1A of continuous output current with a typical dropout voltage of only 75mV. The output voltage is adjustable from 0.5V to VIN and is ±2% accurate over load and line variations, from -40°C to +125°C. The MAX15028 features a BIAS input of 3V to 5.5V from an always-on power supply. The BIAS input current is reduced down to less than 2µA during shutdown. These regulators use small, 1µF ceramic input capacitors and 4.7µF ceramic output capacitors to deliver 1A output current. High bandwidth provides excellent transient response and limits the output voltage deviation to 15mV for a 500mA load step, with only a 4.7µF ceramic output capacitor, and the voltage deviations can be reduced further by increasing the output capacitor. These devices offer a logic-controlled shutdown input to reduce input current (IIN) consumption down to less than 5.5µA in standby mode. Other features include a soft-start to reduce inrush current, short-circuit protection, and thermal-overload protection. The MAX15028 features a BIAS input allowing a secondary supply to keep the LDO's internal circuitry alive if the voltage on IN goes to 0V. Both devices are fully specified from -40°C to +125°C and are available in a 10-pin thermally enhanced TDFN package (3mm x 3mm) that includes an exposed pad for optimal power dissipation. For a 500mA version of these LDOs, refer to the MAX15029/MAX15030 data sheet.

Key Features		Applications/Uses
1.425V to 3.6V Input Voltage Range Output Voltage Programmable from 0.5V to VIN Guaranteed Maximum 225mV Dropout at 1A Output Current ±2% Output Accuracy Over Load, Line, and Temperature Stable with Ceramic Capacitors Fast Transient Response 60µA Operating Bias Supply Current (MAX15028) 1.2µA Shutdown Bias Supply Current (MAX15028) Short-Circuit and Thermal Protection -40°C to +125°C Operating Temperature Range Soft-Start Limits Inrush Current Thermally Enhanced 3mm x 3mm TDFN Package		ATE Automotive (Dead-Man LDO) Base Stations Networking Optical Modules Servers Storage

Diagram

Typical Operating Circuits

Design Guides

Power Solutions for Enterprise Management (PDF)

Reliability Reports

Reliability Report: MAX15027.pdf MAX15028.pdf Show FIT data for: MAX15027 MAX15028

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: 1-5 of 5

MAX15027	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15027ATB+T			Active	TDFN-EP;10 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0003 (PDF) Use pkgcode/variation: T1033+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15027ATB/V+T			Active	TDFN-EP;10 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0003 (PDF) Use pkgcode/variation: T1033+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15028	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15028ATB+T			Active	TDFN-EP;10 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0003 (PDF) Use pkgcode/variation: T1033+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15028ATB+			Active	TDFN-EP;10 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0003 (PDF) Use pkgcode/variation: T1033+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15028ATB/V+T			Active	TDFN-EP;10 pin;9.6 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0003 (PDF) Use pkgcode/variation: T1033+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

Topmark Coding: MAX15027 MAX15028 New Product Press Release 2009-07-06

Related Products

MAX8516, MAX8517, MAX8518 1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulators More Like This: View Product Families for Similar Products See All Linear Regulators (152 Products)

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