LTC1044, LTC1044A, LTC1044A1 Selling Leads, Datasheet
MFG:LINEAR Package Cooled:DIP8 D/C:99
LTC1044, LTC1044A, LTC1044A1 Datasheet download
Part Number: LTC1044
MFG: LINEAR
Package Cooled: DIP8
D/C: 99
LTC1044, LTC1044A, LTC1044A1
- Table of contents:
Info of LTC1044
Info of LTC1044A
Info of LTC1044A1
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About LTC1044
PDF/DataSheet Download
Datasheet: LTC1044
File Size: 757191 KB
Manufacturer: LINER [Linear Technology]
Download : Click here to Download
About LTC1044A
PDF/DataSheet Download
Datasheet: LTC1044A
File Size: 281704 KB
Manufacturer: LINER [Linear Technology]
Download : Click here to Download
About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
LTC1044A General Description
The LTC1044A is a monolithic CMOS switched-capacitor voltage converter. It plugs in for ICL7660/LTC1044 in
applications where higher input voltage (up to 12V) needed. The LTC1044A provides several conversion functions without using inductors. The input voltage can be inverted (VOUT = VIN), doubled (VOUT = 2VIN), divided
(VOUT = VIN/2) or multiplied (VOUT = ±nVIN).
To optimize performance in specific applications, a boost function is available to raise the internal oscillator frequency by a factor of 7. Smaller external capacitors can be used in higher frequency operation to save board space. The internal oscillator can also be disabled to save power. The supply current drops to 1.5mA at 5V input when the OSC pin is tied to GND or V +.
LTC1044A Maximum Ratings
Supply Voltage ........................................................ 13V
Input Voltage on Pins 1, 6 and 7
(Note 2) .............................. 0.3V < VIN < V+ + 0.3V
Current into Pin 6 ................................................. 20mA
Output Short-Circuit Duration
V+ £ 6.5V .................................................Continuous
Operating Temperature Range
LTC1044AC ............................................ 0°C to 70°C
LTC1044AI ........................................ 40°C to 85°C
Storage Temperature Range ................ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
LTC1044A Features
1.5V to 12V Operating Supply Voltage Range
13V Absolute Maximum Rating
200mA Maximum No Load Supply Current at 5V
Boost Pin (Pin 1) for Higher Switching Frequency
97% Minimum Open Circuit Voltage Conversion Efficiency
95% Minimum Power Conversion Efficiency
IS = 1.5mA with 5V Supply When OSC Pin = 0V or V +
High Voltage Upgrade to ICL7660/LTC1044
13V Absolute Maximum Rating
200mA Maximum No Load Supply Current at 5V
Boost Pin (Pin 1) for Higher Switching Frequency
97% Minimum Open Circuit Voltage Conversion Efficiency
95% Minimum Power Conversion Efficiency
IS = 1.5mA with 5V Supply When OSC Pin = 0V or V +
High Voltage Upgrade to ICL7660/LTC1044
LTC1044A Typical Application
Conversion of 10V to ±10V Supplies
Conversion of 5V to ±5V Supplies
Precise Voltage Division: VOUT = VIN/2 ±20ppm
Supply Splitter: VOUT = ±VS/2
Automotive Applications
Battery Systems with 9V Wall Adapters/Chargers
Conversion of 5V to ±5V Supplies
Precise Voltage Division: VOUT = VIN/2 ±20ppm
Supply Splitter: VOUT = ±VS/2
Automotive Applications
Battery Systems with 9V Wall Adapters/Chargers
LTC1044A Connection Diagram
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