LM138 STMicroelectronics, LM138 Datasheet - Page 12

• Manufacturer Part Number: LM138
• Description: Three-terminal 5 A adjustable voltage regulators
• Manufacturer: STMicroelectronics

6
Figure 17. 1.2 V to 25 V adjustable regulator
12/23
Typical application
Needed if device is far from filter capacitors.
* Optional-improves transient response. Output capacitors in the range of 1mF to 100mF of aluminium or
** V
*** R
tantalum electrolytic are commonly used to provide improved output impedance and rejection of transients
O
1
= 1.25 V (1 + R
= 240 Ω for LM138 and LM238
2
/R
1
)