Texas Instruments LM138QML
The LM138QML adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 5 A over a 1.2-V to 32-V output range. The device is exceptionally easy to use and requires only two resistors to set the output voltage. The current limit circuitry allows peak currents of up to 12 A to be drawn from the regulator for short periods of time.| Part No. | LM138QML |
|---|---|
| Datasheet | LM138QML Download |
| Manufacturer |  Texas Instruments |
| Description | 5-A Adjustable Output Linear Regulator |
| Buy | Stock & Price |
FEATURES
●1 Manufactured and Tested per Texas Instruments Military Grade Flow● Specified 7-A Peak Output Current
● Specified 5-A Output Current
● Wide Temperature Range –55°C to 150°C
● Adjustable Output Down to 1.2 V
● Specified Thermal Regulation
● Current Limit Constant With Temperature
● P+ Product Enhancement Tested
● Output is Short-Circuit Protected 2
APPLICATIONS
● Adjustable Power Supplies● Constant Current Regulators
● Battery Chargers 3
DESCRIPTION
Careful circuit design has resulted in outstanding load and line regulation—comparable to many commercial power supplies. A unique feature of the LM138QML device is timedependent current limiting. This allows the LM138QML device to be used with heavy transient loads and speeds start-up under full-load conditions. Under sustained loading conditions, the current limit decreases to a safe value protecting the regulator. Also included on the chip are thermal overload protection and safe area protection for the power transistor. Overload protection remains functional even if the adjustment pin is accidentally disconnected.
