Summary of LM43600 – SIMPLE SWITCHER® 3.5V to 36V, 500mA Synchronous Step-Down Voltage Converter
The LM43600 is a SIMPLE SWITCHER synchronous step-down DC-DC converter delivering up to 0.5 A from 3.5 V to 36 V (42 V transient). It offers high efficiency, output accuracy, low dropout, and small solution size. Peak current-mode control, programmable switching frequency, synchronization, power-good flag, precision enable, internal and extendable soft-start, tracking, and cycle-by-cycle current limiting make it flexible and easy to use for many applications; 1 A, 2 A and 3 A family members are pin-compatible.
Parts used in theLM43600 SIMPLE SWITCHER Project:
- LM43600 synchronous step-down DC-DC converter
- Inductor (appropriate value for switching regulator)
- Input capacitor (suitable voltage and low ESR)
- Output capacitor (suitable voltage and low ESR)
- Schottky diode or synchronous MOSFETs as per application
- Feedback resistors for output voltage setting
- Compensation network components (if required)
- Enable/soft-start control components
- PCB and connectors for Vin, Vout, ground
Recommended alternative parts
- LM25007 – The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
- TPS54040 – The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
- LM3103 – The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
- LM25017 – The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.
Related Terms
- Synchronous, Simple, Switcher, Low Quiescent, Wide Vin, High Voltage, Wide Input Voltage, SIMPLE SWITCHER
Description
The LM43600 SIMPLE SWITCHER® regulator is an easy to use synchronous step-down DC-DC converter capable of driving up to 0.5 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V transient). The LM43600 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 1 A, 2 A and 3 A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to use platform for a wide range of applications.
For more detail: LM43600 – SIMPLE SWITCHER® 3.5V to 36V, 500mA Synchronous Step-Down Voltage Converter
- What input voltage range does the LM43600 support?
The LM43600 supports an input voltage range from 3.5 V to 36 V and can withstand 42 V transient. - What maximum output current can the LM43600 drive?
The LM43600 can drive up to 0.5 A of load current. - Does the LM43600 use synchronous rectification?
Yes, the LM43600 is a synchronous step-down converter. - What control topology does the LM43600 employ?
The LM43600 employs peak current mode control. - Can the switching frequency be programmed or synchronized?
Yes, the LM43600 offers programmable switching frequency and synchronization. - Does the LM43600 provide soft-start and tracking features?
Yes, it provides internal soft-start, extendable soft-start, and tracking features. - Is there a power-good indicator feature?
Yes, the LM43600 includes a power-good flag. - Are there higher current family members compatible with the LM43600?
Yes, an extended family with 1 A, 2 A, and 3 A options is available in pin-to-pin compatible packages.
