LTC3803IS6-5#TRPBF

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Analog Devices

CONSTANT FREQUENCY CURRENT MODE FLYBACK DC/DC CONTROLLER IN THINSOT

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LTC3803IS6-5#TRPBF

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Analog Devices

CONSTANT FREQUENCY CURRENT MODE FLYBACK DC/DC CONTROLLER IN THINSOT

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3803IS6-5#TRPBF

Clock Sync	False
Control Features	Enable, Current Limit
Duty Cycle (Max)	80 %
Frequency - Switching	200 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	TSOT-23-6, SOT-23-6 Thin
Supplier Device Package	TSOT-23-6
Synchronous Rectifier	False
Topology	Flyback
Voltage - Supply (Vcc/Vdd) [Max]	8.1 V
Voltage - Supply (Vcc/Vdd) [Min]	4 V

LTC3803-5 Series

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

Part	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Topology	Package / Case	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Duty Cycle (Max)	Output Phases	Supplier Device Package	Function	Number of Outputs	Output Type	Frequency - Switching	Control Features	Output Configuration
Analog Devices LTC3803HS6#TRMPBF	150 °C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803IS6-5#TRPBF	125 ¯C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	4 V	8.1 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803MPS6-3#TRPBF	150 °C	-55 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	300 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803HS6-5#TRPBF	150 °C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	4 V	8.1 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803IS6#TRMPBF	125 ¯C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803HS6#TRPBF	150 °C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803MPS6-3#TRMPBF	150 °C	-55 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	300 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803HS6-5#TRMPBF	150 °C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	4 V	8.1 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	200 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803HS6-3#TRMPBF	150 °C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	300 kHz	Current Limit Enable	Isolation Capable Positive
Analog Devices LTC3803IS6-3#TRMPBF	125 ¯C	-40 °C	Surface Mount	Flyback	SOT-23-6 Thin TSOT-23-6	5.7 V	8 V	80 %	1	TSOT-23-6	Step-Up/Step-Down	1	Transistor Driver	300 kHz	Current Limit Enable	Isolation Capable Positive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 6.03
		10	$ 4.07
		25	$ 3.56
		100	$ 2.98
		250	$ 2.71
		500	$ 2.54
		1000	$ 2.40
	Digi-Reel®	1	$ 6.03
		10	$ 4.07
		25	$ 3.56
		100	$ 2.98
		250	$ 2.71
		500	$ 2.54
		1000	$ 2.40
	Tape & Reel (TR)	2500	$ 2.25

Description

General part information

LTC3803-5 Series

The LTC3803-3 is a constant frequency current mode flyback controller optimized for driving N-channel MOSFETs in high input voltage applications. Constant frequency operation is maintained down to very light loads, resulting in less low frequency noise generation over a wide range of load currents. Slope compensation can be programmed with an external resistor.The LTC3803-3 provides ±1.5% output voltage accuracy and consumes only 240μA of quiescent current. Ground referenced current sensing allows LTC3803-3-based converters to accept input supplies beyond the LTC3803-3’s absolute maximum VCC. A micropower hysteretic start-up feature allows efficient operation at high input voltages. For simplicity, the LTC3803-3 can also be powered from a high VINthrough a resistor, due to its internal shunt regulator. An internal undervoltage lockout shuts down the LTC3803-3 when the input voltage is too low to provide sufficient gate drive to the external MOSFET.The LTC3803-3 is available in a low profile (1mm) 6-lead SOT-23 (ThinSOT™) package.Turn On VoltageFrequencyLTC38038.7V200kHzLTC3803-38.7V300kHzLTC3803-54.8V200kHzApplicationsTelecom Power Supplies42V and 12V Automotive Power SuppliesAuxiliary/Housekeeping Power SuppliesPower over Ethernet Powered Devices

LTC3803IS6-5#TRPBF

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LTC3803IS6-5#TRPBF

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Technical Specifications

LTC3803-5 Series

Pricing

Description

LTC3803-5 Series

Documents

R421 Reliability Data

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Tape and Reel Packaging

LTC3803-5 Series