LM137 Extended Temperature 1.5A Adjustable Output Negative Voltage Regulator / LDO | TI.com

LM137
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Extended Temperature 1.5A Adjustable Output Negative Voltage Regulator / LDO

 

Description

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. 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.

Features

  • 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

Parametrics

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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LM137 Order now Adjustable Output
Negative Output    
1.5     -4.2     -40     -1.2     -37       TO | 3         1     -55 to 150     137     1110     9.27 | 1ku     Catalog     30     4     3000     0.065     3TO: 92 mm2: 9.14 x 10.03 (TO | 3)    
LM120 Samples not available Fixed Output
Negative Output    
1.5     -7     -25     -5     -15     -5
-12
-15    
TO | 3         1     -55 to 150     35     150     10.13 | 1ku     Catalog     23     2     3000     1     3TO: 92 mm2: 9.14 x 10.03 (TO | 3)    
LM337-N Order now Adjustable Output
Negative Output    
1.5     -4.2     -40     -1.2     -37       SOT-223 | 4
TO-220 | 3
TO-220 | 3    
    1     -40 to 125
0 to 125
0 to125    
23     38     0.61 | 1ku     Catalog     35     2.4     2400     0.065     4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
3TO-220: 47 mm2: 4.58 x 10.16 (TO-220 | 3)
3TO-220: 194 mm2: 19.05 x 10.16 (TO-220 | 3)    
LM337L Order now Adjustable Output
Negative Output    
0.1     -4.2     -40     -1.2     -37       SOIC | 8
TO-92 | 3    
    1     -25 to 100     111     38     0.26 | 1ku     Catalog       1.4     2200     0.05     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)