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MAX15088

High-Efficiency, 3A, Step-Down Switching Regulator with Tracking Feature

Smallest, Most Efficient 3A Solution in the Market with Tracking Input

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Status

Part Number	Status
MAX15088	Active: In Production.

Description

The MAX15088 high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 3A of output current. The device operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 94% of the input voltage, making the device ideal for distributed power systems, portable devices, and preregulation applications.

The MAX15088 uses a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.

The MAX15088 offers selectable skip-mode functionality to reduce current consumption and achieve a higher efficiency at light output load. The low R_DS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout design a much simpler task with respect to discrete solutions. Using a simple layout and footprint assures first-pass success in new designs.

The MAX15088 features a 1MHz, factory-trimmed, fixed-frequency PWM mode operation. The high switching frequency, along with the PWM current-mode architecture, allows for a compact, all-ceramic capacitor design.

The MAX15088 offers an external reference input that can be used for tracking the device startup into a PREBIAS output and offers a PGOOD open-drain output that can be used as an interrupt for power sequencing.

The MAX15088 is available in a 9-bump (3 x 3 array), 1.5mm x 1.5mm WLP package and is specified over the -40°C to +85°C temperature range.

Data Sheet

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Key Features

Internal 30mΩ (typ) R_DS(ON) High-Side and 18mΩ (typ) Low-Side MOSFETs at 5V
Continuous 3A Output Current Over Temperature
96% Efficiency with 3.3V Output at 3A
±1% Output Voltage Accuracy Over Load, Line, and Temperature
Operates from 2.7V to 5.5V Supply
Cycle-by-Cycle Overcurrent Protection
Adjustable Output from 0.6V to Up to 0.94 x V_IN
Factory-Trimmed, 1MHz Switching Frequency
Stable with Low-ESR Ceramic Output Capacitors
Safe-Startup Into Prebiased Output (Used for Power Tracking)
External Reference Input for Tracking During Power-Up/Power-Down
Skip-Mode Functionality
Enable Input/Power-Good Output
Fully Protected Against Overcurrent and Overtemperature
Input Undervoltage Lockout

Applications/Uses

Distributed Power Systems
Notebook Power
Portable Devices
Preregulators for Linear Regulators

Product Guides

Enterprise Power (PDF)

Reliability Reports

Reliability Report:	MAX15088.pdf
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Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX15088EVKIT#			Custom Order	KIT; Land Pattern: Not Available		See data sheet
MAX15088EWL+			Active: Data sheet on request only	WLP HC;9 pin;WLP; Outline Drawing:21-0508 (PDF) Land Pattern: Not Available Use pkgcode/variation: W91E1Z+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX15088EWL+T			Active: Data sheet on request only	WLP HC;9 pin;WLP HC; Outline Drawing:21-0508 (PDF) Land Pattern: Not Available Use pkgcode/variation: W91E1Z+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

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