Refer to the PDF data sheet for device specific package drawings
The LMZ20501 nano module regulator is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 1 A of load from an input of up to 5.5 V, with exceptional efficiency and output accuracy in a very small solution size. The innovative package contains the regulator and inductor in a small 3.5 mm × 3.5 mm × 1.75 mm volume, thus saving board space and eliminating the time and expense of inductor selection. The LMZ20501 requires only five external components and has a pin-out designed for simple, optimum PCB layout. The device provides for an easy to use complete design with a minimum number of external components and the TI WEBENCH® design tool. TI's WEBENCH tool includes features such as external component calculation, electrical simulation, and WebTherm®. For soldering information, see SNOA401.
PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
---|---|---|
LMZ20501 | USIP (8) | 3.50 mm × 3.50 mm |
Changes from Revision D (August 2018) to Revision E (September 2021)
Changes from Revision C (April 2015) to Revision D (August 2018)
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NUMBER | NAME | ||
1 | PG | O | Power-good flag; open drain. Connect to logic supply through a resistor. High = power good; low = power bad. If not used, leave unconnected. |
2 | EN | I | Enable input. High = On, Low = Off. A valid input voltage, on pin 8, must be present before EN is asserted. Do not float. |
3 | MODE | I | Mode selection input. High = forced PWM. Low = AUTO mode with PFM at light load. Do not float. |
4 | FB | I | Feedback input to controller. Connect to output through feedback divider. |
5 | VOUT | P | Regulated output voltage. Connect to COUT. |
6 | GND | G | Ground for all circuitry. Reference point for all voltages |
7 | NC | — | This pin must be left floating. Do not connect to ground or any other node. |
8 | VIN | P | Input supply to regulator. Connect to input capacitor(s) as close as possible to the VIN pin and GND pin of the module. |
EP | EP | G | Ground and heat-sink connection. See Section 10.1 for more information. |