SC1565
SC1565 is VERY LOW DROPOUT 1.5 AMP REGULATOR manufactured by SEMTECH.
POWER MANAGEMENT
Description
The SC1565 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 1.5 Amps. Since it has superior dropout characteristics pared to regular LDOs, it can be used to supply 2.5V on motherboards or 2.8V on peripheral cards from the 3.3V supply thus allowing the elimination of costly heatsinks. Additionally, the 5-lead TO-220/TO-263 and SO-8 versions have an enable pin to further reduce power dissipation while shut down. The SC1565 provides excellent regulation over variations in line, load and temperature.
The SC1565 is available in SO-8, 3-lead SOT-223, 3 and 5 lead TO-220 and 3 and 5 lead TO-263 packages. Three lead packages are available with 1.8V and 2.5V fixed output options only. The SO-8, TO-220-5 and TO-263-5 are available with 1.8V and 2.5V internally preset outputs that are also adjustable using external resistors.
Very Low Dropout 1.5 Amp Regulator With Enable
Features
350m V dropout @ 1.5A Adjustable output from 1.2V to 4.8V(1) 2.5V and 1.8V options (adjustable externally using resistors)(1) Over current and over temperature protection Enable pin(1) 10µA quiescent current in shutdown(1) Low reverse leakage (output to input) Surface mount and through-hole packages Full industrial temperature range TO-220, TO-263, SOT-223 and SO-8 Packages Note: (1) SO-8, TO-220-5 and TO-263-5 packages only.
Applications
Battery powered systems Motherboards Peripheral cards Network cards Set Top Boxes Medical Equipment Notebook puters
Typical Application Circuits
ENABLE VIN VO
U1 1 EN GND 8 2 VIN GND 7 3 VO GND 6 4 ADJ GND 5 R1 SC1565IS-X.X
C1 C2
R2
=
1.200 (R1 + R2) R2
Volts
U1
SC1565IT-X.X
1 VIN
VO 3
GND C1
VIN ENABLE VO
C2
ENABLE VIN VO
C1 C2
U1
SC1565I5T-X.X
2 VIN
VO...
