The LM79LXXAC series of 3-terminal negative voltage regulators features fixed output voltages of −5V, −12V, and −15V with output current capabilities in excess of 100mA. These devices were designed using the latest computer techniques for optimizing the packaged IC thermal/electrical performance. The LM79LXXAC series, when combined with a minimum output capacitor of 0.1μF, exhibits an excellent transient response, a maximum line regulation of 0.07% VO/V, and a maximum load regulation of 0.01% VO/mA.
The LM79LXXAC series also includes, as self-protection circuitry: safe operating area circuitry for output transistor power dissipation limiting, a temperature independent short circuit current limit for peak output current limiting, and a thermal shutdown circuit to prevent excessive junction temperature. Although designed primarily as fixed voltage regulators, these devices may be combined with simple external circuitry for boosted and/or adjustable voltages and currents. The LM79LXXAC series is available in the 3-lead TO package, the 8-lead SOIC package, and the 6-Bump DSBGA package.
For output voltages other than the pre-set -5V, -12V and -15V, the LM137L series provides an adjustable output voltage range from -1.2V to -47V.
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|Iout (Max) (A)|
|Vin (Max) (V)|
|Vin (Min) (V)|
|Vout (Max) (V)|
|Vout (Min) (V)|
|Fixed output options (V)|
|Regulated outputs (#)|
|Operating temperature range (C)|
|Thermal Resistance θJA (°C/W)|
|Approx. price (US$)|
|Output capacitor type|
|PSRR @ 100 KHz (dB)|
|Vdo (Typ) (mV)|
|Iq (Typ) (mA)|
|Package size: mm2:W x L (PKG)|
DSBGA | 6
SOIC | 8
TO-92 | 3
|0 to 70|
|0.24 | 1ku|
See datasheet (DSBGA)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)