Texas Instruments LM137
The LM137 and LM337-N are adjustable 3-terminal negative voltage regulators capable of supplying −1.5 A or more currents over an output voltage range of −1.25 V to −37 V. It requires only two external resistors to set the output voltage and one output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients.| Part No. | LM137 |
|---|---|
| Datasheet | LM137 Download |
| Manufacturer |  Texas Instruments |
| Description | 3-Terminal Adjustable Negative Regulators |
| Buy | Stock & Price |
FEATURES
●1 1.5-A Output Current● Line Regulation 0.01%/V (Typical)
● Load Regulation 0.3% (Typical)
● 77-dB Ripple Rejection
● 50 ppm/°C Temperature Coefficient
● Thermal Overload Protection
● Internal Short-Circuit Current Limiting Protections 2
APPLICATIONS
● Industrial Power Supplies● Factory Automation Systems
● Building Automation Systems
● PLC Systems
● Instrumentation
● IGBT Drive Negative Gate Supplies
● Networking
● Set-Top Boxes 3
DESCRIPTION
Further, the LM137 and LM337-N feature internal current limiting, thermal shutdown and safe-area compensation, making it virtually blowout-proof against overloads. The LM137 and LM337-N are ideal complements to the LM117 and LM317 adjustable positive regulators. The LM137 has a wider operating temperature range than the LM337-N and is also offered in military and space qualified versions. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM137 TO (3) 8.255 mm × 8.255 mm SOT-223 (4) 3.50 mm × 6.50 mm LM337-N TO (3) 8.255 mm × 8.255 mm TO-220 (3) 10.16 mm × 14.986 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
