Evaluation Kit for the MAX629

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX629 evaluation kit (EV kit) contains two separate switching-regulator circuits. The first circuit converts a +0.8V to V_OUT battery voltage to a +24V LCD backplane bias voltage for currents up to 20mA. The second circuit converts a +0.8V to +12V battery voltage to a -20V voltage for currents up to 20mA. The MAX629 requires a +2.7V to +5.5V supply at VCC, but the inductor can be powered from as low as 0.8V. Both output voltages can be adjusted by changing the feedback-resistor values.

The MAX629 EV kit provides low quiescent current and high efficiency for maximum battery life. Operation up to 300kHz allows the use of a tiny surface-mount inductor. This EV kit is a fully assembled and tested surface-mount circuit board.

Data Sheet

Download	Rev 1	(PDF, 55kB)
E-Mail

Key Features

Output Voltage:
- +24V Positive
- -20V Negative
Battery Input Voltage:
- +0.8V to V_OUT (Positive Output)
- +0.8V to +15V (Negative Output)
+2.7V to +5.5V V_CC Supply Range
Up to 20mA Output Current
Internal 28V N-Channel Switch
1µA (Max) IC Shutdown Current
Up to 300kHz Switching Frequency
Surface-Mount Components
Fully Assembled and Tested

Applications/Uses

2-Cell and 3-Cell Battery-Powered Applications
High-Efficiency DC-DC Boost Converters
Palmtop Computers
Positive or Negative LCD Bias Generators
Varactor Tuning Diode Bias

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX629EVKIT			Active	KIT; Land Pattern: Not Available		See data sheet

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; -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.

Products with Similar Part Numbers

MAX629

28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1219 Rev 1; 1997-06-01
This page last modified: 2007-07-19