APL5605 Anpec Electronics Corporation, APL5605 Datasheet - Page 7

• Manufacturer Part Number: APL5605
• Description: 600ma Linear Regulator For Dc Fan Speed Control
• Manufacturer: Anpec Electronics Corporation

Pin Descriptions
Copyright
Rev. A.1 - Jan., 2008
V
Operating Waveforms (Cont.)
APL5605
IN
5,6,7,8
=5V, V
1
2
No.
3
1
2
3
4
SET
Time : 500ms/div
CH2 : V
CH3 : I
CH1 : V
Pin
=2V, V
ANPEC Electronics Corp.
OUT
Name
VOUT
VSET
GND
OUT
IN
VIN
EN
V
OUT
, 5V/div
, 500mA/div
Thermal Shutdown
IN
, 2V/div
=3.2V, C
V
I
OUT
OUT
Enable Control Input. Driving the EN high turns on the regulator. Pulling the EN low turns the
regulator into shutdown mode. The EN is pulled low by an internal resistor.
Supply Voltage Input Pin. Supply voltage can range from 4.5V to 6V. Bypass with a 1 F (typical)
capacitor to GND
Regulator Output. Sources up to 600mA. A small capacitor is needed from this pin to ground to
assure stability.
Output Voltage-Set Input. The output voltage follows the 1.6 times of the VSET voltage.
Ground. These pins are internally connected with the internal leadframe. Connect these pins to a
wide ground plane for good heat dissipation.
IN
=1 F, C
OUT
=2.2 F, unless otherwise specified.
7
Function Descriptions
2
1
3
Time : 2ms/div
CH1 : V
CH2 : V
CH3 : I
Current Limit and Foldback
OUT
OUT
IN
, 5V/div
, 1A/div
, 2V/div
Current Limit
V
V
OUT
IN
I
OUT
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