APL1581 Datasheet, PDF (3/17 Pages) Anpec Electronics Coropration – DUAL INPUT LOW DROPOUT REGULATOR

APL1581
Block Diagram
VIN
VCNTL
VOUT
Current
Limit
VSENSE
Thermal
Protection
Voltage
Regulation
ADJ/GND
Absolute Maximum Ratings (Note 1, 2)
Symbol
Parameter
VIN
Input Voltage
VCNTL
Control Voltage
Rating
Unit
7
V
7
V
PD
Power Dissipation
Internally Limited
W
TJ
Junction Temperature
150
°C
TSTG
Storage Temperature Range
-65 to +150
°C
TSDR
Maximum Lead Soldering Temperature, 10 Seconds
260
°C
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 2: The maximum allowable power dissipation at any T_A (ambient temperature) is calculated using: P_D
(max) = (T_J – T_A) / θ_JA; T_J = 125°C. Exceeding the maximum allowable power dissipation will result in
excessive die temperature.
Thermal Characteristics
Symbol
Parameter
Typical Value
Unit
Junction-to-Ambient Resistance in free air ^{(Note 3)}
θJA
TO-263-5 (Toplayer plane size : 15mm x 15 mm)
TO-252-5 (Toplayer plane size : 10mm x 10 mm)
28
o_C/W
42
SOP-8-P (Toplayer plane size : 10mm x 10 mm)
68
Junction-to-Case Resistance ^{(Note 4)}
TO-220-5
3
θJC
TO-263-5
4
o_C/W
TO-252-5
5
Note 3: θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. The sizes of the
rectangular plane, where the devices are mounted, are shown in the table.
Note 4: The case temperature is measured on the TAB of the device mounted on the test board described in Note 3 except the
package TO-220-5. The case temperature of the TO-220-5 is measured on the bottom of the case directly below the die.
Copyright © ANPEC Electronics Corp.
3
Rev. B.5 - Mar., 2008
www.anpec.com.tw