LTC3246HMSE#PBF

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Analog Devices

WIDE VINRANGE BUCK-BOOST CHARGE PUMP WITH WATCHDOG TIMER

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LTC3246HMSE#PBF

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Analog Devices

WIDE VINRANGE BUCK-BOOST CHARGE PUMP WITH WATCHDOG TIMER

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3246HMSE#PBF

Current - Output	500 mA
Frequency - Switching	450 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable (Programmable)
Package / Case	Exposed Pad, 16-TFSOP
Package / Case	3 mm, 0.118 in
Supplier Device Package	16-MSOP-EP
Synchronous Rectifier	False
Voltage - Input (Max) [Max]	38 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	2.5 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage - Output (Min/Fixed)	5 V

LTC3246 Series

Wide VINRange Buck-Boost Charge Pump with Watchdog Timer

Part	Current - Output	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Output Configuration	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Function	Package / Case	Package / Case	Frequency - Switching	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Output Type	Voltage - Output (Max)	Mounting Type	Number of Outputs
Analog Devices LTC3246MPMSE#TRPBF	500 mA	2.7 V	38 V	Positive	16-MSOP-EP	125 ¯C	-55 °C	Step-Up/Step-Down	16-TFSOP Exposed Pad	0.118 in 3 mm	450 kHz	2.5 V	3.3 V	5 V	Adjustable (Programmable)	5 V	Surface Mount	1
Analog Devices LTC3246HMSE#PBF	500 mA	2.7 V	38 V	Positive	16-MSOP-EP	150 °C	-40 °C	Step-Up/Step-Down	16-TFSOP Exposed Pad	0.118 in 3 mm	450 kHz	2.5 V	3.3 V	5 V	Adjustable (Programmable)	5 V	Surface Mount	1
Analog Devices LTC3246IMSE#TRPBF	500 mA	2.7 V	38 V	Positive	16-MSOP-EP	125 ¯C	-40 °C	Step-Up/Step-Down	16-TFSOP Exposed Pad	0.118 in 3 mm	450 kHz	2.5 V	3.3 V	5 V	Adjustable (Programmable)	5 V	Surface Mount	1
Analog Devices LTC3246IMSE#PBF	500 mA	2.7 V	38 V	Positive	16-MSOP-EP	125 ¯C	-40 °C	Step-Up/Step-Down	16-TFSOP Exposed Pad	0.118 in 3 mm	450 kHz	2.5 V	3.3 V	5 V	Adjustable (Programmable)	5 V	Surface Mount	1

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 9.14
		10	$ 6.46
		25	$ 6.05

Description

General part information

LTC3246 Series

The LTC3246 is a switched capacitor buck-boost DC/DC converter with integrated watchdog timer. The device produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input. Switched capacitor fractional conversion is used to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ratio to optimize efficiency as input voltage and load conditions vary. No inductors are required.The LTC3246’s reset time and watchdog timeout may be set without external components, or adjusted using external capacitors. A windowed watchdog function is used for high reliability applications. The reset input can be used for additional supply monitoring or be configured as a pushbutton reset.Low operating current (20μA without load, 1.5μA in shutdown) and low external parts count make the LTC3246 ideally suited for low power, space constrained automotive/ industrial applications. The device is short-circuit and overtemperature protected and is available in a thermally enhanced 16-pin MSOP package.ApplicationsAutomotive ECU/CAN Transceiver SuppliesIndustrial/Telecom Housekeeping SuppliesLow Power 12V to 5V Conversion

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