Product Summary

The REG7105 is a switched capacitor voltage converter, that produces a regulated, low-ripple output voltage from an unregulated input voltage. A wide-input supply voltage of 1.8V to 5.5V makes the REG7105 ideal for a variety of battery sources, such as single cell Li-Ion, or two and three cell nickel- or alkaline-based chemistries. The applications of the REG7105 include Smart Card Readers, SIM Card Supplies, Cellular Phones, Portable Communication Devices, Personal Digital Assistants, Notebook and Palm-Top Computers, Modems, Electronic Games, Handheld Meters, PCMCIA Cards, Card Buses, White LED Drivers, LCD Displays and Battery Backup Supplies.

Parametrics

REG7105 absolute maximum ratings: (1)Supply Voltage: –0.3V to +6.0V; (2)Enable Input: –0.3V to VIN; (3)Output Short-Circuit Duration: Indefinite; (4)Operating Temperature Range: –55 to +125℃; (5)Storage Temperature Range: –65 to +150℃; (6)Junction Temperature: –55 to +150℃; (7)Lead Temperature (soldering, 3s): +240℃.

Features

REG7105 features: (1)Wide Input Range: 1.8V to 5.5V; (2)Automatic Step-Up/Step-Down Operation; (3)Low Input Current Ripple; (4)Low Output Voltage Ripple; (5)Minimum Number of External Components?No Inductors; (6)1MHz Internal Oscillator Allows Small Capacitors; (7)Shutdown Mode; (8)Thermal and Current Limit Protection; (9)Six Output Voltages Available: 5.5V, 5.0V, 3.3V, 3.0V, 2.7V, 2.5V.

Diagrams

REG7105 simplifed block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
REG71050DDCR
REG71050DDCR

Texas Instruments

Charge Pumps 60-mA 5.0V Buck/ Boost Charge Pump

Data Sheet

0-2270: $0.37
2270-3000: $0.36
3000-12000: $0.35
REG71050DDCRG4
REG71050DDCRG4

Texas Instruments

Charge Pumps 60-mA 5.0V Buck/ Boost Charge Pump

Data Sheet

0-2360: $0.35
2360-3000: $0.35
3000-12000: $0.35
REG71050DRVR
REG71050DRVR

Texas Instruments

Charge Pumps 60mA 5.0V Buck/Boost Charge Pump

Data Sheet

0-2270: $0.37
2270-3000: $0.36
3000-12000: $0.34
REG71050DRVRG4
REG71050DRVRG4

Texas Instruments

Charge Pumps 60mA 5.0V Buck/Boost Charge Pump

Data Sheet

0-2270: $0.37
2270-3000: $0.36
3000-12000: $0.35
REG71050DRVT
REG71050DRVT

Texas Instruments

Charge Pumps 60mA 5.0V Buck/Boost Charge Pump

Data Sheet

0-1: $0.92
1-25: $0.74
25-100: $0.68
100-250: $0.61
REG71055DDCT
REG71055DDCT

Texas Instruments

Charge Pumps 60-mA 5.5V Buck/ Boost Charge Pump

Data Sheet

0-1: $0.88
1-25: $0.67
25-100: $0.61
100-250: $0.56
REG71055DDCTG4
REG71055DDCTG4

Texas Instruments

Charge Pumps 60-mA 5.5V Buck/ Boost Charge Pump

Data Sheet

0-1: $0.92
1-25: $0.74
25-100: $0.68
100-250: $0.61
REG71055IDDCRQ1
REG71055IDDCRQ1

Texas Instruments

Charge Pumps Auto Cat 60-mA 5.5V Buck/boost Ch Pump

Data Sheet

0-2150: $0.46
2150-3000: $0.44
3000-6000: $0.42
6000-12000: $0.41