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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 152kB) Download   E-Mail

Description

The MAX608 low-voltage step-up controller operates from a 1.8V to 16.5V input voltage range. Pulse-frequency-modulation (PFM) control provides high efficiency at heavy loads, while using only 85µA (typical) when operating with no load. In addition, a logic-controlled shutdown mode reduces supply current to 2µA typical. The output voltage is factory-set at 5V or can be adjusted from 3V to 16.5V with an external resistor divider. The MAX608 is ideal for two- and three-cell battery-powered systems. An operating frequency of up to 300kHz allows use with small surface-mount components. The MAX608 operates in "bootstrapped" mode only (with the chip supply, OUT, connected to the DC-DC output). For a 12V output without external resistors, or for nonbootstrapped applications (chip supply connected to input voltage), refer to the pin-compatible MAX1771. The MAX608 is available in 8-pin DIP and SO packages.

An evaluation kit is available:  MAX608EVKIT  

Key Features		Applications/Uses
1.8V to 16.5V Input Range 85% Efficiency for 30mA to 1.5A Load Currents Up to 10W Output Power 110µA Max Supply Current 5µA Max Shutdown Current Preset 5V or Adjustable Output (3V to 16.5V) Current-Limited PFM Control Scheme Up to 300kHz Switching Frequency Evaluation Kit Available		Battery-Powered Applications High-Efficiency DC-DC Converters Portable Communicators Positive LCD-Bias Generators

Diagram

Typical Operating Circuit

Application Notes

Application Note 254: Switch-Mode Converter Starts With Full Load Connected - MAX608 Application Note 947: Dual Power Supply for Wallcube/Battery-Powered Systems - MAX608 Application Note 1025: Step-Up/Step-Down Converter Generates 3.3V From Two Or Three Cells - MAX608 Application Note 1054: Simple Change Improves PFM Boost-Controller Efficiency - MAX608 Application Note 1170: Circuit Connection Adds Current-Mode Operation To PFM Boost Converters - MAX608

Evaluation Kits

MAX608EVKIT

Design Guides

Wireless (PDF)

Reliability Reports

Show FIT data for: MAX608 Request Reliability Report for: MAX608

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: 1-7 of 7

MAX608	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX608C/D			Active	DICE SALES;NA pin;0 mm² Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX608EPA+			Active	PDIP(N);8 pin;79.7 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX608EPA			Active	PDIP(N);8 pin;79.7 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX608ESA			Active	SOIC(N);8 pin;30.9 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
MAX608ESA-T			Active	SOIC(N);8 pin;30.9 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
MAX608ESA+			Active	SOIC(N);8 pin;30.9 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
MAX608ESA+T			Active	SOIC(N);8 pin;30.9 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

Notes and Comments

Like MAX1771 but accepts lower input voltages. Supports SEPIC Configuration

Related Products

MAX1771 12V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controller More Like This: View Product Families for Similar Products See All Step-Up Switching Regulators (90 Products)

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