0
ACTIVE
Rating |
Catalog |
Vin (max) (V) |
30 |
Vin (min) (V) |
-20 |
Iout (max) (A) |
0.25 |
Output options |
Fixed Output |
Vout (max) (V) |
5 |
Vout (min) (V) |
5 |
Fixed output options (V) |
5 |
Noise (µVrms) |
320 |
PSRR at 100 KHz (dB) |
14 |
Iq (typ) (mA) |
0.15 |
Features |
Enable, Power good |
Thermal resistance θJA (°C/W) |
60 |
Load capacitance (min) (µF) |
2.2 |
Regulated outputs (#) |
1 |
Accuracy (%) |
2 |
Dropout voltage (Vdo) (typ) (mV) |
470 |
Operating temperature range (°C) |
-40 to 125 |
TO-263 (KTT)-5-154.8384 mm² 10.16 x 15.24
All trademarks are the property of their respective owners.
The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).
Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.
Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.
The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).
The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.
The LP2957 is available in the five-lead TO-220 and DDPAK/TO-263 packages.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
