LTC1515IS8#PBF

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Analog Devices Inc./Maxim Integrated

STEP-UP/STEP-DOWN SWITCHED CAPACITOR DC/DC CONVERTERS WITH RESET

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LTC1515IS8#PBF

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Analog Devices Inc./Maxim Integrated

STEP-UP/STEP-DOWN SWITCHED CAPACITOR DC/DC CONVERTERS WITH RESET

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC1515 Series

The LTC1515, LTC1515-3/5 and LTC1515-3.3/5 are micropower switched capacitor DC/DC converters that produce a regulated output voltage by either stepping up or stepping down the input voltage. Output voltage is adjustable using an external resistor divider (LTC1515) or programmable to either 3V/5V (LTC1515-3/5) or 3.3V/5V (LTC1515-3.3/5) using a logic pin.A unique architecture allows the parts to accommodate a wide input voltage range (2V to 10V) while maintaining ±4% regulation. Additional circuitry prevents excessive inrush current and output voltage ripple when large VINto VOUTdifferentials are present.An internal power-on reset circuit forces the POR pin low on initial power-up. The POR output remains low until 200ms (typ) after VOUTis in regulation.The parts are short-circuit and over-temperature protected. Battery life is maximized by very low operating currents (ICC= 60µA typ, ICC<1µA in shutdown). All three parts are available in an SO-8 package.ApplicationsSIM Interface in GSM Cellular TelephonesSmart Card ReadersLocal Power SuppliesPortable Equipment

Technical Specifications

Parameters and characteristics for this part

Specification	LTC1515IS8#PBF

Current - Output	50 mA
Frequency - Switching	650 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Length	0.154 in
Package Name	8-SO, 8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Charge Pump
Voltage - Input (Max)	10 V
Voltage - Input (Min)	2 V
Voltage - Output (Max)	20 V
Voltage - Output (Min/Fixed)	1.232 V

LTC1515 Series

Part	Package Name	Voltage - Output (Min/Fixed)	Package Length	Package Width	Voltage - Input (Max)	Output Type	Function	Frequency - Switching	Synchronous Rectifier	Output Configuration	Current - Output	Number of Outputs	Operating Temperature (Min)	Operating Temperature (Max)	Mounting Type	Voltage - Input (Min)	Voltage - Output (Max)	Topology	Voltage - Output (Fixed)	Voltage - Output (Min)
Analog Devices Inc./Maxim Integrated LTC1515CS8#TRPBF	8-SO 8-SOIC	1.232 V	0.154 in	3.9 mm	10 V	Adjustable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	0 °C	70 °C	Surface Mount	2 V	20 V	Charge Pump
Analog Devices Inc./Maxim Integrated LTC1515IS8#TRPBF	8-SO 8-SOIC	1.232 V	0.154 in	3.9 mm	10 V	Adjustable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	-40 °C	85 °C	Surface Mount	2 V	20 V	Charge Pump
Analog Devices Inc./Maxim Integrated LTC1515IS8-3/5#TRPBF	8-SO 8-SOIC		0.154 in	3.9 mm	10 V	Programmable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	-40 °C	85 °C	Surface Mount	2 V		Charge Pump	5 V	3 V
Analog Devices Inc./Maxim Integrated LTC1515IS8-3/5#PBF	8-SO 8-SOIC		0.154 in	3.9 mm	10 V	Programmable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	-40 °C	85 °C	Surface Mount	2 V		Charge Pump	5 V	3 V
Analog Devices Inc./Maxim Integrated LTC1515CS8#PBF	8-SO 8-SOIC	1.232 V	0.154 in	3.9 mm	10 V	Adjustable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	0 °C	70 °C	Surface Mount	2 V	20 V	Charge Pump
Analog Devices Inc./Maxim Integrated LTC1515IS8#PBF	8-SO 8-SOIC	1.232 V	0.154 in	3.9 mm	10 V	Adjustable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	-40 °C	85 °C	Surface Mount	2 V	20 V	Charge Pump
Analog Devices Inc./Maxim Integrated LTC1515IS8-3.3/5#PBF	8-SO 8-SOIC		0.154 in	3.9 mm	10 V	Programmable	Step-Down Step-Up	650 kHz	No	Positive	50 mA	1	-40 °C	85 °C	Surface Mount	2 V		Charge Pump	5 V	3.3 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC1515IS8#PBF | Datasheet

R368 Reliability Data