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LMR60420-Q1 36V 2A synchronous buck converter with low Iq, high efficiency, and extremely low output capacitance

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描述

Parameter Details
Rating Automotive
Topology Buck
Iout (max) (A) 2
Vin (max) (V) 36
Vin (min) (V) 3
Vout (max) (V) 34
Vout (min) (V) 1
Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package
EMI features Low parasitic Hotrod packaging, Spread Spectrum
Control mode current mode
Switching frequency (min) (kHz) 200
Switching frequency (max) (kHz) 2200
TI functional safety category Functional Safety – Capable
Operating temperature range (°C) -40 to 150
Iq (typ) (μA) 4
Duty cycle (max) (%) 98
Type Converter
Parameter Details
Input Voltage Wide operating input voltage: 3V to 36V (42V absolute maximum)
Quiescent Current Ultra – low quiescent current; Shutdown current: 0.65μA; No load standby current: 5μA
Output Voltage Options Pin programmable output voltage options available in fixed 3.3V/ADJ and 5V/ADJ; Adjustable output voltage range from 1V to 20V
Minimum tON Low minimum tON (30ns typical)
EMI Design Designed for low electromagnetic interference (EMI) requirements; Facilitates CISPR 25 class 5 compliance; Low inductance HotRod™ QFN package; Spread spectrum options available
Switching Frequency Programmable switching frequency from 200kHz – 2.2MHz
Modulation & Synchronization FPWM, PFM, or external frequency synchronization available
Scalability Designed for scalable power supplies; Pin compatible with LMR60406 – Q1, LMR60410 – Q1, LMR60430 – Q1, and LMR60440 – Q1
Power Sequencing Power – Good output for power sequencing

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