| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 3 Pin |
| Supply Voltage (DC) | 300mV (max) |
| Current Rating | 1.50 kA |
| Case/Package | TO-220-3 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | -26.0 V (max) |
| Output Voltage | -12.0 V |
| Output Current | 1.8 A |
| Supply Current | 1mA ~ 5mA |
| Number of Positions | 3 Position |
| Quiescent Current | 1 mA |
| voltage rating | 600 mV |
| Number of Regulated Outputs | 1 Output |
| Input Voltage (Max) | 0.3 V |
| Output Current (Max) | 1 A |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Accuracy | ±5 % |
| Input Voltage | 0.3 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 10.16 mm |
| Size-Width | 4.7 mm |
| Size-Height | 8.89 mm |
| Operating Temperature | -40℃ ~ 125℃ |
The LM2990 is a three-terminal, low-dropout, 1-A negative voltage regulator available with fixed output voltages of −5 V, −5.2 V, −12 V, and −15 V.
●The LM2990 uses circuit design techniques to provide low-dropout and low-quiescent current. The dropout voltage at 1-A load current is typically 0.6 V and an ensured worst-case maximum of 1 V over the entire operating temperature range. The quiescent current is typically 1 mA with 1-A load current and an input-output voltage differential greater than 3 V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VOUT − VIN ≤ 3 V). Output voltage accuracy is ensured to ±5% over load and temperature extremes.
●The LM2990 also implements short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when overloaded for an extended period of time.
●All these features make the LM2990 an ideal negative power supply suited for dual supply systems. The device may also be used as fixed or adjustable current sink load.
●The LM2990 is available in two 3-pin packages and is rated for operation over the junction temperature range of −40°C to 125°C.
TI
Fixed LDO Voltage Regulator, -26V to 300mV, 600mV Dropout, -12Vout, 1Aout, TO-220-3
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IC, V REG LDO -12V, 2990, TO-220-3,
TI
TEXAS INSTRUMENTS LM2990T-12/NOPB Fixed LDO Voltage Regulator, -26V to 300mV, 600mV Dropout, -12Vout, 1.5Aout, TO-220-3
National Semiconductor
LDO Regulator Neg -12V 1.8A 3Pin(3+Tab) TO-220 Rail
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