Voltage Converter. LM2765 Datasheet

LM2765 Converter. Datasheet pdf. Equivalent

Part LM2765
Description Switched-Capacitor Voltage Converter
Feature Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference .
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Total Page 22 Pages
Datasheet
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LM2765
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
LM2765
SNVS070D – MARCH 2000 – REVISED SEPTEMBER 2016
LM2765 Switched-Capacitor Voltage Converter
1 Features
1 Doubles Input Supply Voltage
• SOT-23 6-Pin Package
• 20-Ω Typical Output Impedance
• 90% Typical Conversion Efficiency at 20 mA
• 0.1-µA Typical Shutdown Current
2 Applications
• Cellular Phones
• Pagers
• PDAs
• Operational Amplifier Power Supplies
• Interface Power Supplies
• Handheld Instruments
3 Description
The LM2765 CMOS charge-pump voltage converter
operates as a voltage doubler for an input voltage in
the range of 1.8 V to 5.5 V. Two low-cost capacitors
and a diode are used in this circuit to provide up to 20
mA of output current.
The LM2765 operates at 50-kHz switching frequency
to reduce output resistance and voltage ripple. With
an operating current of only 130 µA (operating
efficiency greater than 90% with most loads) and 0.1-
µA typical shutdown current, the LM2765 provides
ideal performance for battery powered systems. The
device is manufactured in a 6-pin SOT-23 package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM2765
SOT-23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
space
space
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Voltage Doubler
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



LM2765
LM2765
SNVS070D – MARCH 2000 – REVISED SEPTEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics ............................................. 5
7 Parameter Measurement Information .................. 7
7.1 Test Circuit ................................................................ 7
8 Detailed Description .............................................. 8
8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 8
8.3 Feature Description................................................... 8
8.4 Device Functional Modes.......................................... 8
9 Application and Implementation .......................... 9
9.1 Application Information.............................................. 9
9.2 Typical Applications .................................................. 9
10 Power Supply Recommendations ..................... 12
11 Layout................................................................... 13
11.1 Layout Guidelines ................................................. 13
11.2 Layout Example .................................................... 13
12 Device and Documentation Support ................. 14
12.1 Device Support...................................................... 14
12.2 Receiving Notification of Documentation Updates 14
12.3 Community Resources.......................................... 14
12.4 Trademarks ........................................................... 14
12.5 Electrostatic Discharge Caution ............................ 14
12.6 Glossary ................................................................ 14
13 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (May 2013) to Revision D
Page
• Added Pin Configuration and Functions section, ESD Rating table, Feature Description , Device Functional Modes,
Application and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and
Mechanical, Packaging, and Orderable Information sections; change pin name "VOUT" to "OUT"...................................... 1
• Added top nav icon for TI design .......................................................................................................................................... 1
• Changed RθJA value from 210°C/W to 185.2°C/W; add additional thermal values ................................................................ 4
Changes from Revision B (May 2013) to Revision C
Page
• Changed layout of National Semiconductor data sheet to TI format.................................................................................... 12
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