LTC1879EGN#TRPBF

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Analog Devices Inc./Maxim Integrated

CONV DC-DC 2.65V TO 10V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.8V TO 10V 1.2A 16-PIN SSOP N T/R

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LTC1879EGN#TRPBF

Active

Analog Devices Inc./Maxim Integrated

CONV DC-DC 2.65V TO 10V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.8V TO 10V 1.2A 16-PIN SSOP N T/R

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC1879 Series

The LTC1879 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Operating supply current is only 15µA with no load and drops to <1µA in shutdown. The input supply voltage range of 2.65V to 10V makes the LTC1879 ideally suited for both single and dual Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.The switching frequency is internally set to 550kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC1879 can be externally synchronized from 350kHz to 750kHz. Burst Mode operation is inhibited during synchronization or when the SYNC/MODE pin is pulled low.The internal synchronous rectifier switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with a 0.8V feedback reference voltage. The LTC1879 is available in a 16-lead SSOP package.ApplicationsCellular TelephonesPortable ComputersWireless Modems

Technical Specifications

Parameters and characteristics for this part

Specification	LTC1879EGN#TRPBF

Current - Output	1.2 A
Frequency - Switching	550 kHz
Function	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	16-SSOP
Package Width	3.9 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	10 V
Voltage - Input (Min)	2.65 V
Voltage - Output (Max)	10 V
Voltage - Output (Min/Fixed)	0.8 V

LTC1879 Series

1.2A Synchronous Step-Down Regulator with 15µA Quiescent Current

Part	Function	Voltage - Output (Max)	Voltage - Input (Min)	Output Configuration	Voltage - Input (Max)	Number of Outputs	Package Width	Package Name	Package Length	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Output Type	Current - Output	Frequency - Switching	Mounting Type	Synchronous Rectifier	Voltage - Output (Min/Fixed)
Analog Devices Inc./Maxim Integrated LTC1879EGN#PBF	Step-Down	10 V	2.65 V	Positive	10 V	1	3.9 mm	16-SSOP	0.154 in	Buck	85 °C	-40 °C	Adjustable	1.2 A	550 kHz	Surface Mount	Yes	0.8 V
Analog Devices Inc./Maxim Integrated LTC1879EGN#TRPBF	Step-Down	10 V	2.65 V	Positive	10 V	1	3.9 mm	16-SSOP	0.154 in	Buck	85 °C	-40 °C	Adjustable	1.2 A	550 kHz	Surface Mount	Yes	0.8 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R419 Reliability Data

LTC1879EGN#TRPBF | Datasheet