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LTC3830EGN#TRPBF

High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

Manufacturer:

LT
Mfr.Part #:

LTC3830EGN#TRPBF
Datasheet:

LTC3830EGN#TRPBF Datasheet (PDF)
Output Voltage:

1.265 V to 7.28 V, 3.3 V
Output Current:

20 A
Input Voltage, Max:

8 V
Number of Outputs:

1 Output
EDA/CAD Models:

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LTC3830EGN#TRPBF General Description

The LTC3830/LTC3830-1 are high power, high efficiency switching regulator controllers optimized for 3.3V-5V to 1.xV-3.xV step-down applications. A precision internal reference and feedback system provide ±1% output regulation over temperature, load current and line voltage variations. The LTC3830/LTC3830-1 use a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without a current sense resistor.

Key Features

High Power Switching Regulator Controller for 3.3V-5V to 1.xV-3.xV Step-Down Applications
No Current Sense Resistor Required
Low Input Supply Voltage Range: 3V to 8V
Maximum Duty Cycle >91% Over Temperature
All N-Channel External MOSFETs
Excellent Output Regulation: ±1% Over Line, Load and Temperature Variations
High Efficiency: Over 95% Possible
Adjustable or Fixed 3.3V Output (16-Pin Version)
Programmable Fixed Frequency Operation: 100kHz to 500kHz
External Clock Synchronization
Soft-Start (16-Pin Version and LTC3830-1)
Low Shutdown Current: <10µA
Overtemperature Protection
Available in S8, S16 and SSOP-16 Packages

Application

CPU Power Supplies
Multiple Logic Supply Generator
Distributed Power Applications
High Efficiency Power Conversion

Specifications

Product Category	Switching Voltage Regulators	Output Voltage	1.265 V to 7.28 V, 3.3 V
Output Current	20 A	Input Voltage, Max	8 V
Number of Outputs	1 Output	Topology	Buck
Mounting Style	SMD/SMT	Switching Frequency	100 kHz to 500 kHz
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Series	LTC3830	Input Voltage, Min	3 V
Development Kit	DC469A, DC493A	Height	1.75 mm
Input Voltage	3 V to 8 V	Load Regulation	2 mV
Operating Supply Current	700 uA	Product Type	Switching Voltage Regulators
Shutdown	Shutdown	Factory Pack Quantity	2500
Subcategory	PMIC - Power Management ICs	Type	High Power Step-Down Synchronous DC/DC Controller