LTC1044AIN8#PBF datasheet, PDF

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LTC1044AIN8#PBF: DescriptionCharge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin PDIP N Tube; File Size201KB，14 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC1044AIN8#PBF Overview

Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin PDIP N Tube

LTC1044AIN8#PBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Function	Inverting/Step Up/Step Down
Output Type	Adjustable
Output Voltage (V)	Adj
Minimum Operating Supply Voltage (V)	1.5
Maximum Operating Supply Voltage (V)	12
Maximum Supply Current (mA)	0.2
Output Current (mA)	20(Max)
Switching Frequency (kHz)	5(Min)
Efficiency (%)	98(Typ)
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Supplier Temperature Grade	Industrial
Packaging	Tube
Supplier Package	PDIP N
Pin Count	8
Standard Package Name	DIP
Mounting	Through Hole
Package Height	3.3
Package Length	10.16(Max)
Package Width	6.48
PCB changed	8
Lead Shape	Through Hole

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LTC1044A

12V CMOS

Voltage Converter

FeaTures

DescripTion

The

LTC

1044A

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 (V

OUT

= –V

), doubled (V

OUT

= 2V

), divided

OUT

= V

/2) or multiplied (V

OUT

= ±nV

To optimize performance in specific applications, a boost

function is available to raise the internal oscillator frequency

by a factor of seven. 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 1.5µA at 5V input when the

OSC pin is tied to GND or V

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

1.5V to 12V Operating Supply Voltage Range

13V Absolute Maximum Rating

200µA 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

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

High Voltage Upgrade to ICL7660/LTC1044

applicaTions

Conversion of 10V to ±10V Supplies

Conversion of 5V to ±5V Supplies

Precise Voltage Division: V

OUT

= V

/2 ±20ppm

Voltage Multiplication: V

OUT

= ±nV

Supply Splitter: V

OUT

= ±V

Automotive Applications

Battery Systems with 9V Wall Adapters/Chargers

Typical applicaTion

Generating –10V from 10V

LTC1044A

BOOST

CAP

Output Voltage vs Load Current, V

= 10V

–1

–2

OUTPUT VOLTAGE (V)

–3

–4

–5

–6

–7

–8

–9

–10

10 20 30 40 50 60 70 80 90 100

LOAD CURRENT (mA)

1044a TA01b

10V INPUT

= 25°C

C1 = C2 = 10µF

10µF

OSC

OUT

1044a TA01a

GND

CAP

–

–10V OUTPUT

10µF

SLOPE = 45

1044afa

For more information

www.linear.com/LTC1044A

LTC1044AIN8#PBF Related Products

	LTC1044AIN8#PBF	LTC1044ACN8#PBF	LTC1044ACS8#PBF	LTC1044ACS8#TRPBF	LTC1044AIS8#PBF	LTC1044AIS8#TRPBF
Description	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin PDIP N Tube	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin PDIP N Tube	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin SOIC N Tube	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin SOIC N T/R	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin SOIC N Tube	Charge Pump INV/STPUP/STPDN 20mA Automotive 8-Pin SOIC N T/R
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Active	Active	Active	Active	Active
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Function	Inverting/Step Up/Step Down	Inverting/Step Up/Step Down	Inverting/Step Up/Step Down	Inverting/Step Up/Step Down	Inverting/Step Up/Step Down	Inverting/Step Up/Step Down
Output Type	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable
Output Voltage (V)	Adj	Adj	Adj	Adj	Adj	Adj
Minimum Operating Supply Voltage (V)	1.5	1.5	1.5	1.5	1.5	1.5
Maximum Operating Supply Voltage (V)	12	12	12	12	12	12
Maximum Supply Current (mA)	0.2	0.2	0.2	0.2	0.2	0.2
Output Current (mA)	20(Max)	20(Max)	20(Max)	20(Max)	20(Max)	20(Max)
Switching Frequency (kHz)	5(Min)	5(Min)	5(Min)	5(Min)	5(Min)	5(Min)
Efficiency (%)	98(Typ)	98(Typ)	98(Typ)	98(Typ)	98(Typ)	98(Typ)
Maximum Operating Temperature (°C)	85	70	70	70	85	85
Supplier Temperature Grade	Industrial	Commercial	Commercial	Commercial	Industrial	Industrial
Packaging	Tube	Tube	Tube	Tape and Reel	Tube	Tape and Reel
Supplier Package	PDIP N	PDIP N	SOIC N	SOIC N	SOIC N	SOIC N
Pin Count	8	8	8	8	8	8
Standard Package Name	DIP	DIP	SOP	SOP	SOP	SOP
Mounting	Through Hole	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	3.3	3.3	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)
Package Length	10.16(Max)	10.16(Max)	5(Max)	5(Max)	5(Max)	5(Max)
Package Width	6.48	6.48	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)
PCB changed	8	8	8	8	8	8
Lead Shape	Through Hole	Through Hole	Gull-wing	Gull-wing	Gull-wing	Gull-wing

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