LTC1044AI datasheet(1/12 Pages) LINER

部件名	LTC1044AI

功能描述	12V CMOS Voltage Converter

PDF	12 Pages

Scroll/Zoom	100%

制造商	LINER [Linear Technology]

网页	http://www.linear.com

标志

1 / 12 page

1

LTC1044A

12V CMOS

Voltage Converter

DESCRIPTIO

S

FEATURE

S

APPLICATI

s

1.5V to 12V Operating Supply Voltage Range

s

13V Absolute Maximum Rating

s

200

µA Maximum No Load Supply Current at 5V

s

Boost Pin (Pin 1) for Higher Switching Frequency

s

97% Minimum Open Circuit Voltage Conversion

Efficiency

s

95% Minimum Power Conversion Efficiency

s

IS = 1.5µA with 5V Supply When OSC Pin = 0V or V

+

s

High Voltage Upgrade to ICL7660/LTC1044

s

Conversion of 10V to

±10V Supplies

s

Conversion of 5V to

±5V Supplies

s

Precise Voltage Division: VOUT = VIN/2 ±20ppm

s

Voltage Multiplication: VOUT = ±nVIN

s

Supply Splitter: VOUT = ±VS/2

s

Automotive Applications

s

Battery Systems with 9V Wall Adapters/Chargers

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) is

needed. The LTC1044A provides several conversion func-

tions 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 fre-

quency 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 1.5

µA at 5V input when the

OSC pin is tied to GND or V +.

APPLICATI

TYPICAL

Generating – 10V from 10V

Output Voltage vs Load Current, V + = 10V

LOAD CURRENT (mA)

0

–4

–2

0

40

LTC1044A • TA02

–6

–8

–5

–3

–1

–7

–9

–10

10 20 30

50 60 70 80 90 100

TA = 25°C

C1 = C2 = 10

µF

SLOPE = 45

Ω

1

2

3

4

8

7

6

5

LTC1044A

V+

OSC

LV

VOUT

BOOST

CAP+

GND

CAP–

+

10

µF

10

µF

10V INPUT

–10V OUTPUT

LTC1044A • TA01

类似零件编号 - LTC1044AI

制造商	部件名	数据表	功能描述
Linear Technology	LTC1044A	221Kb / 14P	12V CMOS Voltage Converter
Linear Technology	LTC1044A	221Kb / 14P	12V CMOS Voltage Converter

More results

类似说明 - LTC1044AI

制造商	部件名	数据表	功能描述
Impala Linear Corporati...	ILC6660	58Kb / 5P	CMOS MONOLITHIC VOLTAGE CONVERTER
Linear Technology	LTC660	262Kb / 12P	100mA CMOS Voltage Converter
Maxim Integrated Produc...	MAX660	108Kb / 12P	CMOS Monolithic Voltage Converter Rev. 2; 9/96
Texas Instruments	TL7660	335Kb / 19P	CMOS VOLTAGE CONVERTER
Intersil Corporation	ICL7662	223Kb / 10P	CMOS Voltage Converter January 9, 2006
Linear Technology	LTC660	238Kb / 12P	100mA CMOS Voltage Converter
Linear Technology	LTC1044A	221Kb / 14P	12V CMOS Voltage Converter
Texas Instruments	TL7660	761Kb / 23P	CMOS VOLTAGE CONVERTER
Renesas Technology Corp	ICL7662	533Kb / 11P	CMOS Voltage Converter
Silicon Supplies	SIS7660	1Mb / 5P	CMOS Voltage Converter