LTC3603IUF#PBF

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Analog Devices Inc./Maxim Integrated

2.5A, 15V MONOLITHIC SYNCHRONOUS STEP-DOWN REGULATOR

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LTC3603IUF#PBF

Active

Analog Devices Inc./Maxim Integrated

2.5A, 15V MONOLITHIC SYNCHRONOUS STEP-DOWN REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3603 Series

The LTC3603 is a high efficiency, monolithic synchronous step-down DC/DC converter utilizing a constant-frequency, current mode architecture. It operates from an input voltage range of 4.5V to 15V and provides an adjustable regulated output voltage from 0.6V to 14.5V while delivering up to 2.5A of output current. The internal synchronous power switch with 45mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. The switching frequency can either be set by an external resistor or synchronized to an external clock. OPTI-LOOP®compensation allows the transient response to be optimized over a wide range of loads and output capacitors.The LTC3603 can be configured for either Burst Mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference, while Burst Mode operation provides the highest efficiency at light loads. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the requirements of the application.ApplicationsPoint-of-Load SuppliesPortable InstrumentsCommunications Infrastructure

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3603IUF#PBF

Current - Output	2.5 A
Frequency - Switching	1 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	20-WFQFN Exposed Pad
Package Length	4 mm
Package Name	20-QFN
Package Width	4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	15 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	14.5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3603 Series

2.5A, 15V Monolithic Synchronous Step-Down Regulator

Part	Voltage - Output (Max)	Voltage - Input (Max)	Frequency - Switching	Operating Temperature (Max)	Operating Temperature (Min)	Package Width	Package Features	Package Name	Package Length	Current - Output	Mounting Type	Synchronous Rectifier	Function	Output Configuration	Voltage - Input (Min)	Topology	Voltage - Output (Min/Fixed)	Number of Outputs	Output Type	Package / Case
Analog Devices Inc./Maxim Integrated LTC3603EMSE#TRPBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable
Analog Devices Inc./Maxim Integrated LTC3603IUF#TRPBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	4 mm		20-QFN	4 mm	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable	20-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3603EUF#TRPBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	4 mm		20-QFN	4 mm	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable	20-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3603IMSE#TRPBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable
Analog Devices Inc./Maxim Integrated LTC3603IUF#PBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	4 mm		20-QFN	4 mm	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable	20-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3603EUF#PBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	4 mm		20-QFN	4 mm	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable	20-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3603IMSE#PBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable
Analog Devices Inc./Maxim Integrated LTC3603EMSE#PBF	14.5 V	15 V	1 MHz	125 °C	-40 °C	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	2.5 A	Surface Mount	Yes	Step-Down	Positive	4.5 V	Buck	0.6 V	1	Adjustable

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R526 Reliability Data

LTC3603IUF#PBF | Datasheet