LT1054CS8#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHED-CAPACITOR VOLTAGE CONVERTER WITH REGULATOR

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LT1054CS8#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHED-CAPACITOR VOLTAGE CONVERTER WITH REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT1054 Series

The LT1054 is a monolithic, bipolar, switched-capacitor voltage converter and regulator. The LT1054 provides higher output current than previously available converters with significantly lower voltage losses. An adaptive switch driver scheme optimizes efficiency over a wide range of output currents. Total voltage loss at 100mA output current is typically 1.1V. This holds true over the full supply voltage range of 3.5V to 15V. Quiescent current is typically 2.5mA.The LT1054 also provides regulation, a feature not previously available in switched-capacitor voltage converters. By adding an external resistive divider a regulated output can be obtained. This output will be regulated against changes in both input voltage and output current. The LT1054 can also be shut down by grounding the feedback pin. Supply current in shutdown is less than 100µA.The internal oscillator of the LT1054 runs at a nominal frequency of 25kHz. The oscillator pin can be used to adjust the switching frequency or to externally synchronize the LT1054.The LT1054 is pin compatible with previous converters such the LTC1044/ICL7660.ApplicationsVoltage InverterVoltage RegulatorNegative Voltage DoublerPositive Voltage Doubler

Technical Specifications

Parameters and characteristics for this part

Specification	LT1054CS8#PBF

Current - Output	100 mA
Frequency - Switching	25 kHz
Function	Step-Up, Ratiometric
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	100 °C
Operating Temperature (Min)	0 °C
Output Configuration	Positive or Negative, Positive, Negative
Output Type	Adjustable (Fixed)
Package Length	0.154 in
Package Name	8-SOIC, 8-SO
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Charge Pump
Voltage - Input (Max)	15 V
Voltage - Input (Min)	3.5 V
Voltage - Output (Max)	30 V
Voltage - Output (Min/Fixed)	2.5 V

LT1054 Series

Switched-Capacitor Voltage Converter with Regulator

Part	Voltage - Input (Max)	Current - Output	Voltage - Input (Min)	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Output Type	Number of Outputs	Package Name	Function	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Output Configuration	Package Length	Package Width	Synchronous Rectifier	Frequency - Switching
Analog Devices Inc./Maxim Integrated LT1054CN8#PBF	15 V	100 mA	3.5 V	Through Hole	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	8-DIP 8-PDIP	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.3 in	7.62 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054LCS8#TRPBF	7 V	120 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	8-SO 8-SOIC	Ratiometric Step-Up	2.5 V	14 V	Negative Positive Positive or Negative	0.154 in	3.9 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054LCS8#PBF	7 V	120 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	8-SO 8-SOIC	Ratiometric Step-Up	2.5 V	14 V	Negative Positive Positive or Negative	0.154 in	3.9 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054IS8#TRPBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	-40 °C	Charge Pump	Adjustable (Fixed)	1	8-SO 8-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.154 in	3.9 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054CSW#PBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	16-SO 16-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.295 in	7.5 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054CS8#TRPBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	8-SO 8-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.154 in	3.9 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054CSW#TRPBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	16-SO 16-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.295 in	7.5 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054ISW#TRPBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	-40 °C	Charge Pump	Adjustable (Fixed)	1	16-SO 16-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.295 in	7.5 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054MJ8	15 V	100 mA	3.5 V	Through Hole			Charge Pump	Adjustable (Fixed)	1	8-CDIP 8-CERDIP	Ratiometric Step-Up	2.5 V	14 V	Negative Positive Positive or Negative	0.3 in	7.62 mm	No	25 kHz
Analog Devices Inc./Maxim Integrated LT1054CS8#PBF	15 V	100 mA	3.5 V	Surface Mount	100 °C	0 °C	Charge Pump	Adjustable (Fixed)	1	8-SO 8-SOIC	Ratiometric Step-Up	2.5 V	30 V	Negative Positive Positive or Negative	0.154 in	3.9 mm	No	25 kHz

Pricing

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CAD

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Datasheet

R017 Reliability Data