0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
0.3 |
Vin (max) (V) |
42 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
34 |
Vout (min) (V) |
0.765 |
Features |
Enable, Overcurrent protection |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.0013 |
Duty cycle (max) (%) |
87 |
SOT-23-THN (DDC)-6-8.12 mm² 2.9 x 2.8
All trademarks are the property of their respective owners.
The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.
The LMR14203 is optimized for up to 300 mA load current.
Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LMR14203 is available in a low profile SOT-6L package.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
