MAX619 Regulated 5V Charge Pump DC-DC Converter

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Compact, Inductorless, Low-Profile 5V Backup Supply Fits in 0.1 Sq. Inch

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Data Sheet

FULL DATA SHEET (PDF, 67kB)
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Description

The MAX619 step-up charge-pump DC-DC converter delivers a regulated 5V ±4% output at 50mA over temperature. The input voltage range is 2V to 3.6V (two battery cells).

The complete MAX619 circuit fits into less than 0.1in² of board space because it requires only four external capacitors: two 0.22µF flying capacitors, and 10µF capacitors at the input and output.

Low operating supply current (150µA max) and low shutdown supply current (1µA max) make this device ideal for small, portable, and battery-powered applications. When shut down, the load is disconnected from the input.

The MAX619 is available in 8-pin DIP and SO packages.

Key Features Applications/Uses

Regulated 5V ±4% Charge Pump
Output Current Guaranteed over Temperature

20mA (V_IN ≥ 2V)

50mA (V_IN, ≥ 3V)

2V to 3.6V Input Range
No Inductors; Very Low EMI Noise
Ultra-Small Application Circuit (0.1in²)
Uses Small, Inexpensive Capacitors
500kHz Internal Oscillator
Logic-Controlled 1µA Max Shutdown Supply Current
Shutdown Disconnects Load from Input
8-Pin DIP and SO Packages

5V Flash Memory Programmer
Battery-Powered Microprocessor-Based Systems
Compact 5V Op-Amp Supply
Local 3.3V to 5V Conversion
Minimum Component DC-DC Converters
Portable Instruments and Handy-Terminals
Regulated 5V Supply from Lithium Backup Battery
Remote Data-Acquisition Systems
Switching Drive Voltage for MOSFETs in Low-Voltage Systems
Two Battery Cells to 5V Conversion

Key Specifications: Charge Pumps

Part Number

Topology

V_IN (min) (V)

V_IN (max) (V)

Operating Current, I_CC (max) (mA)

Unadjusted V_OUT (V)

I_OUT (typ) (A)

Operating Frequency (kHz)

Features

Package

RoHS Available

Operating Temp. Range (°C)

Price^**

MAX619

Doubler
Regulated

3.6

0.17

0.05

500

•

Shutdown

Ceramic DIP/8
PDIP/8
SOIC/8

Yes

-40 to +85
0 to +70

$1.60 @ 1k

See All Charge Pumps (51)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

MAX619: Typical Operating Circuit
Typical Operating Circuit

Application Notes

Application Note 725: DC/DC Conversion without Inductors - MAX619

Evaluation Kits

MAX619EVKIT

Reliability Reports

Show FIT data for:

Reliability Report: MAX619xxA.pdf

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: 1-13 of 13

MAX619 Free
Sample Buy

Package: TYPE PINS FOOTPRINT

DRAWING CODE/VAR *

Temp RoHS/Lead-Free?
Materials Analysis

MAX619MJA
CDIP;8 pin;
Dwg: 56-G4017-001
Use pkgcode/variation: J8-2*
-55°C to +125°C See data sheet

MAX619CPA+

PDIP;8 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX619EPA+

PDIP;8 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX619CPA

PDIP;8 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX619EPA

PDIP;8 pin;
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX619CSA+T
SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX619CSA+

SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX619CSA-T
SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX619CSA

SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX619ESA+T
SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX619ESA-T
SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX619ESA

SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX619ESA+

SOIC;8 pin;
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

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Document Ref.: 19-0227; Rev 2; 1996-05-01
This page last modified: 2008-03-26