The Eval Board is set at 1.2V but can be changed by swapping one of the feedback resistors.
The LM20144 is a full featured buck switching regulator capable of driving up to 4A of load current. The switching frequency of the LM20144 can be varied from 500kHz to 1.5Mhz with an external resistor allowing the size of the power stage components to be reduced while still providing efficient operation.
The LM20144 is capable of converting an input voltage between 2.95V and 5.5V down to an output voltage as low as 0.8V. Fault protection features include cycle-by-cycle current limit, output power good, and output over-voltage protection.
The dual function soft-start/tracking pin can be used to control the startup response of the LM20144, and the precision enable pin can be used to easily sequence the LM20144 in applications with sequencing requirements.
| Manufacturer | Texas Instruments |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | 296-LM20144EVAL-ND |
| Eval Board Supplier | Texas Instruments |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.2 V
|
| Current Out |
4 A
|
| Voltage In |
2.95 ~ 5.5 V
|
| Efficiency @ Conditions |
>83%, 5V in, 1.2V @ 0.6 ~ 4 A
>83%, 3.3V in, 1.2V @ 0.3 ~ 4 A |
| Voltage Out Range |
0.8 ~ 3.3 V
|
| Features |
Current Limit (Adj. or Fixed)
Over Current Protection Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
500 kHz ~ 1.5 MHz
|
| Standby Current [Typical] |
90 µA
|
| Quiescent Current [Typical] |
3.5 mA
|
| Component Count + Extras |
15 + 7
|
| Internal Switch |
Yes
|
| Design Author |
Texas Instruments
|
| Application / Target Market |
Computers
FPGA / DSP / Processors Point of Load (PoL) |
| Standby Current [Maximum] |
180 µA
|
| Quiescent Current [Maximum] |
6 mA
|
| Main I.C. Base Part |
LM20144
|
| Date Created By Author | |
| Date Added To Library | 2023-03 |
Italy
Copyright © 1995-2026, DigiKey.
All Rights Reserved.
Terms & Conditions
Privacy Notice
Cookie Settings
Settings
Fast Delivery
Free Shipping
Incoterms
Payment Types
Marketplace Product
