Anpec APL5605K Schematics
APL5605
600mA Linear Regulator for DC Fan Speed Control
Features
• Low Dropout Voltage: 220mV (typical) @ 600mA
• Low Quiescent Current: 140µA
• Enable/Shutdown function
• Output Voltage / VSET Voltage: 1.6 times
• Stable with Low ESR Ceramic Capacitors
• Over-Temperature Protection
• Current Limit Protection with Foldback Current
• Internal Soft-start
• SOP-8 Package
• Lead Free Available (RoHS Compliant)
Applications
• Notebook Fan Driver
• Motherboards
• PC Peripherals
• Battery-Powered System
General Description
The APL5605 is a low quiescent current and low dropout
linear regulator whic h is designed to power a DC fan
and delivers up to 600mA output current. The output
voltage follows the 1.6 times of VSET voltage and typical dropout voltage is only 220mV (typical) at 600mA
output current. The APL5605 with low 140µA quiescent
current is ideal for battery-powered sys tem appliances
and stable with a 2.2µF ceramic output c apacitor. The
features of current limit (with foldback current) and overtemperature protection protect the device against current over-loads and over temperature. The APL5605 is
available in a SOP-8 package.
Simplified Application Circuit
V
C2
2.2µF
V
OUT
SET
OFF
V
IN
C1
1µF
ON
VIN
APL5605
EN
GND
VOUT
VSET
Ordering and Marking Information
APL5605
Lead Free Code
Handling Code
Temperature Range
Package Code
APL5605 K :
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully
compliant with RoHS and compatible with both SnPb and lead-free soldering operations. ANPEC lead-free products meet or exceed the leadfree requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. A.1 - Jan., 2008
APL5605
XXXXX
Package Code
K : SOP-8
Operating Ambient Temperature Range
I : -40 to 85 C
Handling Code
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
XXXXX - Date Code
°
www.anpec.com.tw1
APL5605
Pin Configuration
SOP-8 Top View
EN 1
VIN 2
VOUT 3
VSET 4
APL5605
Absolute Maximum Ratings (Note 1)
Symbol Parameter Rating Unit
VIN
VEN EN to GND -0.3 ~ VIN+0.3 V
V
VOUT to GND -0.3 ~ VIN+0.3 V
OUT
T
J
PD Power Dissipation Internally Limited
T
STG
T
SDR
Note 1: Stresses beyond the absolute maximum rating may damage the device and exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
VIN to GND
Maximum Junction Temperature
Storage Temperature Range
Maximum Lead Temperature (Soldering, 10 sec)
8 GND
7 GND
6 GND
5 GND
-0.3 ~ 6.5 V
150
-65 ~ 150
260
o
o
o
C
C
C
Thermal Characteristics
Symbol Parameter Rating Unit
Note 2:
θ
JA
θ
is measured with the component mounted on a high effective thermal conductivity test board in free air.
JA
Junction to Ambient Thermal Resistance
SOP-8
80
Recommended Operating Conditions
Symbol Parameter Range Unit
VIN VIN to GND 4.5 ~ 6 V
VEN EN to GND 0 ~ VIN V
V
VOUT to GND 0 ~ VIN-V
OUT
V
VSET to GND 0 ~ 3.3 V
SET
I
Output Current 0 ~ 0.6 A
OUT
CIN Input Capacitor 0.82 ~ 470
C
Output Capacitor 1 ~ 330
OUT
TJ Junction Temperature -40 ~ 125
TA Ambient Temperature -40 ~ 85
V
DROP
°
C/W
µ
°C
°C
F
Copyright ANPEC Electronics Corp.
www.anpec.com.tw2
Rev. A.1 - Jan., 2008
APL5605
Electrical Characteristics
Refer to the typical application circuit. VIN = 5V, VEN = VIN, I
unless otherwise specified. Typical values are at TA = 25 °C.
OUT
= 1mA~600mA, TJ = -40 to 125 °C, TA = -40 to 85°C
,
Symbol
Parameter Test Conditions Min Typ Max Unit
SUPPLY CURRENT
IQ Quiescent Current
VEN = 0V - - 1
VEN = 5V, I
= 0A - 140 200
OUT
UNDER-VOLTAGE-LOCKOUT (UVLO)
VIN UVLO Threshold VIN rising 2.1 2.5 2.9 V
VIN UVLO Hysteresis - 0.15 - V
OUTPUT VOLTAGE
VOUT Voltage / VSET Voltage
VOUT Voltage / VSET Voltage
VSET pin Current
Load Regulation I
V
DROP
Dropout Voltage
TJ = 25°C, VIN=5.5V, I
V
=3.3V
SET
TJ = 40 ~ 125°C, VIN=5.5V, I
V
=1 ~ 3.3V
SET
V
=5V
SET
= 1mA to 600mA - 60 100 mV
OUT
I
=600mA, V
OUT
I
=600mA, V
OUT
I
=600mA, V
OUT
OUT
OUT
OUT
OUT
=2.5V
=3.3V
=5V
=1mA,
OUT
=1mA,
1.552 1.6 1.648 V/V
1.504 1.6 1.696 V/V
- 0.05 1
- 250 400 mV
- 220 350 mV
- 200 320 mV
PROTECTION AND SOFT-START
Output Current Limit 700 - - mA
Thermal Shutdown Temperature - 150 Thermal Shutdown Hysteresis - 40 Foldback Current Limit
V
OUT
< 0.6V
- 250 - mA
TSS Soft-Start Time - 130 300
VOUT Pull Low Resistance VEN=0V, V
=0.5V - 60 -
OUT
LOGIC INPUT
EN Logic Input-High Level 1.6 - - V
EN Logic Input-Low Level - - 0.4 V
EN Pull-Low Resistance VEN<3V - 2 -
µ
A
µ
A
µ
A
°
C
°
C
µ
s
Ω
MΩ
Copyright ANPEC Electronics Corp.
www.anpec.com.tw3
Rev. A.1 - Jan., 2008
APL5605
Typical Operating Characteristics
VIN=5V, V
SET
=2V, V
=3.2V, CIN=1µF, C
OUT
=2.2µF, unless otherwise specified.
OUT
EN Voltage threshold vs.
1.6
1.5
1.4
1.3
1.2
1.1
1
EN Voltage Threshold (V)
0.9
0.8
3 3.5 4 4.5 5 5.5 6 6.5
Input Voltage
Input Voltage (V)
VSET Voltage vs. Output Voltage
6
I
5
4
3
OUT
=10mA
Quiescent Current vs. VSET Voltage
180
160
140
(μA)
120
Q
100
Quiescent Current, I
I
=0mA
OUT
80
60
40
20
0
0 0.5 1 1.5 2 2.5 3
VSET Voltage (V)
Dropout vs. Junction Temperature
300
V
=5V
OUT
250
200
150
I
OUT
=600mA
I
OUT
=400mA
2
Output Voltage (V)
1
0
0 0.5 1 1.5 2 2.5 3 3.5
VSET Voltage (V)
Dropout vs. Junction Temperature
350
V
=3.3V
OUT
300
I
=600mA
OUT
250
200
150
100
Dropout Voltage (mV)
50
0
-50 0 50 100 150
I
=400mA
OUT
I
=200mA
OUT
Junction Temperature, T
(°C)
J
I
=200mA
100
Dropout Voltage (mV)
50
0
-50 0 50 100 150
OUT
Junction Temperature, T
J
(°C)
Power Supply Rejection Ratio
=3.2V
OUT
=500mA
OUT
Frequency (Hz)
(PSRR)
=2.2µF,
OUT
I
OUT
=400mA
0
VIN=5, CIN=1µF, C
-5
V
=2V, V
SET
-10
-15
-20
-25
-30
PSRR (dB)
-35
-40
-45
-50
1000 10000 100000 1000000
I
Copyright ANPEC Electronics Corp.
Rev. A.1 - Jan., 2008
www.anpec.com.tw4
APL5605
Typical Operating Characteristics (Cont.)
VIN=5V, V
SET
=2V, V
=3.2V, CIN=1µF, C
OUT
Quiescent Current vs. Input Voltage
200
I
=0mA
OUT
0 1 2 3 4 5 6
Quiescent Current (µA)
160
120
80
40
0
Input Voltage, VIN (V)
Operating Waveforms
VIN=5V, V
SET
=2V, V
=3.2V, CIN=1µF, C
OUT
Power On
=2.2µF, unless otherwise specified.
OUT
=2.2µF, unless otherwise specified.
OUT
Power Off
1
2
3
4
CH1 : VIN , 2V/div
CH2 : V
CH3 : V
CH4 : I
Time : 1ms/div
V
V
V
I
IN
SET
OUT
OUT
OUT
, 1V/div
SET
, 1V/div
OUT
, 500mA/div
V
SET
1
V
OUT
V
IN
2
I
OUT
V
OUT
3
I
OUT
4
CH1 : VIN , 2V/div
CH2 : V
CH3 : V
CH4 : I
Time : 200ms/div
, 1V/div
SET
, 1V/div
OUT
, 500mA/div
OUT
Copyright ANPEC Electronics Corp.
Rev. A.1 - Jan., 2008
www.anpec.com.tw5
Loading...