Product Summary

The LTC1044CS8 is a monolithic CMOS switched-capacitor voltage converter. It plugs in for ICL7660/LTC1044 in applications where higher input voltage (up to 12V) is needed. The LTC1044CS8 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. The applications of the LTC1044CS8 include Conversion of 10V to ±10V Supplies, Conversion of 5V to ±5V Supplies, Precise Voltage Division: VOUT = VIN/2 ±20ppm, Voltage Multiplication: VOUT = ±nVIN, Supply Splitter: VOUT = ±VS/2, Automotive Applications, Battery Systems with 9V Wall Adapters/Chargers.

Parametrics

LTC1044CS8 absolute maximum ratings: (1)Supply Voltage: 13V; (2)Input Voltage on Pins 1, 6 and 7: –0.3V < VIN < V+ + 0.3V; (3)Current into Pin 6: 20mA; (4)Output Short-Circuit Duration, V+ ≤ 6.5V: Continuous; (5)Operating Temperature Range: 0℃ to 70℃; (6)Storage Temperature Range: -65℃ to 150℃; (7)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC1044CS8 features: (1)1.5V to 12V Operating Supply Voltage Range; (2)13V Absolute Maximum Rating; (3)200mA Maximum No Load Supply Current at 5V; (4)Boost Pin (Pin 1) for Higher Switching Frequency; (5)97% Minimum Open Circuit Voltage Conversion Efficiency; (6)95% Minimum Power Conversion Efficiency; (7)IS = 1.5mA with 5V Supply When OSC Pin = 0V or V +; (8)High Voltage Upgrade to ICL7660/LTC1044.

Diagrams

LTC1044CS8 circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC1044CS8
LTC1044CS8


IC REG MULTI CONFIG 20MA 8SOIC

Data Sheet

0-2800: $1.41
LTC1044CS8#PBF
LTC1044CS8#PBF


IC REG MULTI CONFIG 20MA 8SOIC

Data Sheet

0-1: $2.71
1-25: $1.80
25-100: $1.41
LTC1044CS8#TR
LTC1044CS8#TR


IC REG MULTI CONFIG 20MA 8SOIC

Data Sheet

0-5000: $1.44
LTC1044CS8#TRPBF
LTC1044CS8#TRPBF


IC REG MULTI CONFIG 20MA 8SOIC

Data Sheet

0-2500: $1.44