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LTC1434 - 450mA/ Low Noise Current Mode Step-Down DC/DC Converters

Download the LTC1434 datasheet PDF. This datasheet also covers the LTC variant, as both devices belong to the same 450ma/ low noise current mode step-down dc/dc converters family and are provided as variant models within a single manufacturer datasheet.

General Description

The LTC®1433/LTC1434 are monolithic pulse width modulated step-down DC/DC converters.

By utilizing current mode switching techniques, they provide excellent AC and DC load and line regulation.

Both devices operate at a fixed frequency with the LTC1434 phase-lockable to an external clock signal.

Key Features

  • s s s s s s s s s s s s High Efficiency: Up to 93% Constant Frequency Adaptive PowerTM Operation Input Voltage Range: 3V to 13.5V Internal 0.6Ω Power Switch (VIN = 10V) Low Dropout Operation: 100% Duty Cycle Low-Battery Detector Internal Power-On Reset Timer Current Mode Operation for Excellent Line and Load Transient Response Low Quiescent Current: 470µA Shutdown Mode Draws Only 15µA Supply Current ±1% Reference Accuracy Available in 16- and 20-Lead Narrow SSOP U.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTC-1433.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LTC1433/LTC1434 450mA, Low Noise Current Mode Step-Down DC/DC Converters DESCRIPTION The LTC®1433/LTC1434 are monolithic pulse width modulated step-down DC/DC converters. By utilizing current mode switching techniques, they provide excellent AC and DC load and line regulation. Both devices operate at a fixed frequency with the LTC1434 phase-lockable to an external clock signal. Both devices incorporate two internal P-channel power MOSFETs with a parallel combined resistance of 0.6Ω (at a supply of 10V). The Adaptive Power output stage selectively drives one or both of the switches at frequencies up to 700kHz to reduce switching losses and maintain high efficiencies at low output currents. The LTC1433/LTC1434 are capable of supplying up to 450mA of output current and boasts a ± 2.