MAX889

PRODUCTION

High-Frequency, Regulated, 200mA, Inverting Charge Pump

Regulated Inverting Charge Pump Delivers 200mA for Negative Supply without Inductors

Data Sheet (Rev. 0) Product Selection Table

Part Models: 6
1ku List Price: Starting From $2.64

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Overview

200mA Output Current
Up to 2MHz Switching Frequency
Small Capacitors (1µF)
+2.7V to +5.5V Input Voltage Range
Adjustable Regulated Negative Output (-2.5V to -V_IN)
0.1µA Logic-Controlled Shutdown
Low 0.05Ω Output Resistance (in regulation)
Soft-Start and Foldback Current Limited
Short-Circuit and Thermal Shutdown Protected
8-Pin SO Package

The MAX889 inverting charge pump delivers a regulated negative output voltage at loads of up to 200mA. The device operates with inputs from 2.7V to 5.5V to produce an adjustable, regulated output from -2.5V to -V_IN.

The MAX889 is available with an operating frequency of 2MHz (T version), 1MHz (S version), or 0.5MHz (R version). The higher switching frequency devices allow the use of smaller capacitors for space-limited applications. The lower frequency devices have lower quiescent current.

The MAX889 also features a 0.1µA logic-controlled shutdown mode and is available in an 8-pin SO package. An evaluation kit, MAX889SEVKIT, is available.

Applications

Battery-Powered Applications
Camcorders
Digital Still Cameras
Hard Disk Drive
Measurement Instrumentation
TFT Panels

Part Models: 6
1ku List Price: Starting From $2.64

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX889RESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX889RESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX889SESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX889SESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX889TESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX889TESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 30, 2020 - 1702R2 ASSEMBLY
		pcn_1702r2
MAX889RESA+	PRODUCTION
MAX889RESA+T	PRODUCTION
MAX889SESA+	PRODUCTION
MAX889SESA+T	PRODUCTION
Nov 9, 2018 - 1702C ASSEMBLY
		pcn_1702c
MAX889TESA+	PRODUCTION
MAX889TESA+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX889S

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Features and Benefits

+2.7V to +5.5V Input Range
Uses One 2.2µF and Two 10µF Ceramic Capacitors
Output Adjustable from -2.5V to -V_IN
200mA Output Current
1MHz Switching Frequency
Fully Assembled and Tested Surface-Mount Board

Product Details

The MAX889 IC is an inverting charge pump that delivers a regulated negative output voltage at loads up to 200mA. The device operates from an input of +2.7V to +5.5V to produce a user-adjustable, regulated output of -2.5V to -V_IN.

The MAX889S evaluation kit (EV kit) is a fully assembled and tested surface-mount board. The board is set up to provide a -3.3V output from a +5.0V input supply. The EV kit is shipped with a MAX889S (1MHz switching frequency) installed. The board may also be used to evaluate the MAX889R (500kHz) or the MAX889T (2MHz). To do so, request a free sample of the MAX889RESA or MAX889TESA, and refer to the MAX889 data sheet for the appropriate capacitor values.

Applications

Digital Cameras and Camcorders

Latest Discussions

1 Years Ago

Overview

Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 1