The LMZ14201H SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution that can drive up to 1-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14201H is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.
The LMZ14201H can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 5 V. The LMZ14201H only requires three external resistors and four external capacitors to complete the power solution. The LMZ14201H is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.
PART NUMBER(2) | PACKAGE(1) | BODY SIZE (NOM) |
---|---|---|
LMZ14201H | TO-PMOD (7) | 10.16 mm × 9.85 mm |
Changes from Revision H (October 2015) to Revision I (August 2021)
Changes from Revision G (August 2015) to Revision H (October 2015)
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | VIN | Power | Supply input — Additional external input capacitance is required between this pin and the exposed pad (EP). |
2 | RON | Analog | ON-time resistor — An external resistor from VIN to this pin sets the ON-time and frequency of the application. Typical values range from 100 kΩ to 700 kΩ. |
3 | EN | Analog | Enable — Input to the precision enable comparator. Rising threshold is 1.18 V. |
4 | GND | Ground | Ground — Reference point for all stated voltages. Must be externally connected to EP. |
5 | SS | Analog | Soft-Start — An internal 8 µA current source charges an external capacitor to produce the soft-start function. |
6 | FB | Analog | Feedback — Internally connected to the regulation, overvoltage, and short-circuit comparators. The regulation reference point is 0.8 V at this input pin. Connect the feedback resistor divider between the output and ground to set the output voltage. |
7 | VOUT | Power | Output Voltage — Output from the internal inductor. Connect the output capacitor between this pin and the EP. |
— | EP | Ground | Exposed Pad — Internally connected to pin 4. Used to dissipate heat from the package during operation. Must be electrically connected to pin 4 external to the package. |
MIN | MAX | UNIT | |
---|---|---|---|
VIN, RON to GND | –0.3 | 43.5 | V |
EN, FB, SS to GND | –0.3 | 7 | V |
Junction Temperature | 150 | °C | |
Peak Reflow Case Temperature (30 sec) | 245 | °C | |
Storage Temperature | –65 | 150 | °C |