LTC1624IS8#TRPBF

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Analog Devices Inc./Maxim Integrated

HIGH EFFICIENCY SO-8 N-CHANNEL SWITCHING REGULATOR CONTROLLER

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LTC1624IS8#TRPBF

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Analog Devices Inc./Maxim Integrated

HIGH EFFICIENCY SO-8 N-CHANNEL SWITCHING REGULATOR CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC1624 Series

The LTC1624 is a current mode switching regulator controller that drives an external N-channel power MOSFET using a fixed frequency architecture. It can be operated in all standard switching configurations including boost, step-down, inverting and SEPIC. Burst Mode™operation provides high efficiency at low load currents. A maximum high duty cycle limit of 95% provides low dropout operation which extends operating time in battery-operated systems.The operating frequency is internally set to 200kHz, allowing small inductor values and minimizing PC board space. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 3.5V to 36V (absolute maximum).A multifunction pin (ITH/RUN) allows external compensation for optimum load step response plus shutdown. Soft start can also be implemented with the ITH/RUN pin to properly sequence supplies.ApplicationsNotebook and Palmtop Computers, PDAsCellular Telephones and Wireless ModemsBattery-Operated Digital DevicesDC Power Distribution SystemsBattery Chargers

Technical Specifications

Parameters and characteristics for this part

Specification	LTC1624IS8#TRPBF

Clock Sync	No
Control Features	Enable
Duty Cycle (Max)	95 %
Frequency - Switching	200 kHz
Function	Step-Up/Step-Down, Step-Down, Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive or Negative, Positive, Negative
Output Phases	1
Output Type	Transistor Driver
Package Length	0.154 in
Package Name	8-SO, 8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	SEPIC, Buck, Boost
Voltage - Supply (Vcc/Vdd) Maximum	36 V
Voltage - Supply (Vcc/Vdd) Minimum	3.5 V

LTC1624 Series

High Efficiency SO-8 N-Channel Switching Regulator Controller

Part	Output Type	Function	Package Name	Operating Temperature (Min)	Operating Temperature (Max)	Output Phases	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Duty Cycle (Max)	Frequency - Switching	Control Features	Synchronous Rectifier	Output Configuration	Clock Sync	Topology	Mounting Type	Number of Outputs	Package Length	Package Width
Analog Devices Inc./Maxim Integrated LTC1624CS8#PBF	Transistor Driver	Step-Down Step-Up Step-Up/Step-Down	8-SO 8-SOIC	0 °C	70 °C	1	36 V	3.5 V	95 %	200 kHz	Enable	No	Negative Positive Positive or Negative	No	Boost Buck SEPIC	Surface Mount	1	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated LTC1624CS8#TRPBF	Transistor Driver	Step-Down Step-Up Step-Up/Step-Down	8-SO 8-SOIC	0 °C	70 °C	1	36 V	3.5 V	95 %	200 kHz	Enable	No	Negative Positive Positive or Negative	No	Boost Buck SEPIC	Surface Mount	1	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated LTC1624IS8#TRPBF	Transistor Driver	Step-Down Step-Up Step-Up/Step-Down	8-SO 8-SOIC	-40 °C	85 °C	1	36 V	3.5 V	95 %	200 kHz	Enable	No	Negative Positive Positive or Negative	No	Boost Buck SEPIC	Surface Mount	1	0.154 in	3.9 mm
Analog Devices Inc./Maxim Integrated LTC1624IS8#PBF	Transistor Driver	Step-Down Step-Up Step-Up/Step-Down	8-SO 8-SOIC	-40 °C	85 °C	1	36 V	3.5 V	95 %	200 kHz	Enable	No	Negative Positive Positive or Negative	No	Boost Buck SEPIC	Surface Mount	1	0.154 in	3.9 mm

Pricing

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CAD

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Documents

Technical documentation and resources

Datasheet

R393 Reliability Data