0
ACTIVE
Rating |
Catalog |
Vin (max) (V) |
7 |
Vin (min) (V) |
2.5 |
Iout (max) (A) |
0.8 |
Output options |
Fixed Output |
Vout (max) (V) |
5 |
Vout (min) (V) |
1.8 |
Fixed output options (V) |
1.8, 2.5, 3.3, 5 |
Noise (µVrms) |
150 |
PSRR at 100 KHz (dB) |
15 |
Iq (typ) (mA) |
4 |
Features |
Enable |
Thermal resistance θJA (°C/W) |
40 |
Load capacitance (min) (µF) |
33 |
Regulated outputs (#) |
1 |
Accuracy (%) |
1 |
Dropout voltage (Vdo) (typ) (mV) |
240 |
Operating temperature range (°C) |
-40 to 125 |
SOT-223 (NDC)-5-45.24 mm² 6.5 x 6.96
The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.
Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.
Ground Pin Current: Typically 4 mA at 800-mA load current.
ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).
SENSE: SENSE pin improves regulation at remote loads (for LP3964).
Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
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