Dual-Channel, 3.3V/500mA and 2.5V/300mA Linear Regulator
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
1
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.
Features
General Description
The APL5521 is a dual low dropout regulator with
output 1 with 3.3V/0.5A and output2 with 2.5V/0.3A
output capability. In order to obtain lower dropout
voltage and faster transient response, which is criti-
cal for low voltage applications, the APL5221 has
been optimized. The dropout voltages are guaran-
teed at 1.25V at 0.5A for output1 and 1.2V at 0.3A
for output 2. Current limit is trimmed to ensure speci-
fied output current and controlled short-circuit current.
On-chip thermal limiting provides protection against
any combination of overload that would create ex-
cessive junction temperatures. The APL5521 regu-
lator comes in a SOP-8 package.
Applications
•
Desktop Computer
•
Networking Systems
•
Optical Data Storage Systems
•••••
Fixed Output Voltage :
V
OUT1
=3.3V/500mA
V
OUT2
=2.5V/300mA
•••••
Low Dropout Voltage (defined as the minimum
input/output voltage difference):
Output 1 Dropout Voltage : 1.25V (at 500mA)
Output 2 Dropout Voltage : 1.2V (at 300mA)
•••••
Stable with 10uF Output Capacitor(at V
OUT1
)
Stable with 10uF Output Capacitor(at V
OUT2
)
•••••
No Protection Diodes Needed
•••••
Built in Thermal Protection
•••••
Built in Current Limit Protection
•••••
Fast transient Response
•••••
Short Setting Time
•••••
SOP-8 Package Available
Pin Configuration
APL5521
1
2
3
4
5
6
7
8
V
OUT1
V
IN
V
IN
V
OUT2
G ND
G ND
G ND
G ND
SOP
−
8
Ordering and Marking Information
A P L5521
H a n d lin g C o d e
T e m p . R a n g e
P a c k ag e C o d e
P a c k a g e C o d e
K : S O -8
O p e ra tin g J u n c tio n T e m p . R a n g e
C : 0 to 1 5 0 °C
H a n d lin g C o d e
T U : T u b e T R : T a p e & R e e l
L e a d F re e C o d e
L : L e a d F re e D e vic e B la n k : O rig in a l D e vic e
A P L 5 5 2 1 K :
A P L 5 5 2 1
X X X X X
X X X X X - D a te C o d e
L e a d F re e C o d e
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
2
Pin Description
PIN
No.
Name
I/O
Description
1
V
OUT1
O
V
OUT1
output Voltage 3.3V. sources up to 500 mA.
2
V
IN
I
Supply Voltage. Voltage can range from 4.75V to 8V
3
V
IN
I
Supply Voltage. Voltage can range from 4.75V to 8V
4
V
OUT2
O
V
OUT2
output Voltage 2.5V. sources up to 300 mA.
5
GND
6
GND
7
GND
8
GND
Ground also functions as a heatsink. Solder to the ground plane to
maximize thermal dissipation
Symbol
Parameter
Rating
Unit
V
IN
, V
OUT
Input Voltage or Out Voltage
9
V
RTH,JA
Thermal Resistance – Junction to Ambient
80
°
C/W
PD
Power Dissipation
Internally Limited
W
TJ
Operating Junction Temperature
°
C
Control Section
0 to 125
Power Transistor
0 to 150
TSTG
Storage Temperature Range
-65 to +150
°
C
TL
Lead Temperature (Soldering, 10 second)
260
°
C
Absolute Maximum Ratings
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, T
J
=0 to 125
°
C. Typical values refer to
T
J
=25
°
C.
APL5521
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
IN
Input Voltage
4.75
8
V
I
Q
Quiescent Current
I
OUT1
=0mA, I
OUT2
=0mA
10
16
mA
OTS
Over Temperature
Shutdown
150
°
C
Over Temperature
Shutdown Hysteresis
Hysteresis
10
°
C
TC
Output Voltage
Temperature
Coefficient
50
ppm/
°
C
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
3
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature, T
J
=0 to 125
°
C. Typical values refer to
T
J
=25
°
C.
APL5521
Symbol Parameter
Test
Conditions
Min. Typ. Max.
Unit
Output1 (500mA)
V
OUT1
Output 1 Voltage
4.75< V
IN
<8.0V, 0mA< I
OUT1
<
500mA 3.234 3.3 3.366 V
I
OUT1
Output 1 Current
Capability
V
IN
=5V 500
mA
REG
LINE
Line Regulation
4.75< V
IN1
<8.0V, I
OUT1
=0mA
1
10
mV
REG
LOAD
Load Regulation
V
IN
=5V, 0mA< I
OUT1
< 500mA
14
24
mV
Load
Transient
V
IN
= 5V, I
OUT1
=1mA~500mA in 30us
70
150
mV
V
DROP
Dropout
Voltage
(Note)
I
OUT1
=500mA
1.25
1.4
V
PSRR Ripple Rejection
F
≤
1kHz, 1Vpp at V
IN
= 5V
55
65
dB
C
OUT
Output
Capacitor
C
OUT1
10
µ
F
Output2 (300mA)
V
OUT2
Output 2 Voltage
4.75< V
IN
<8.0V, 0mA< I
OUT 2
<
300mA 2.450 2.5 2.550 V
I
OUT2
Output 2 Current
Capability
V
IN
=5 V
300
mA
REG
LINE
Line Regulation
4.75< V
IN
<8.0V, I
OUT2
=0mA
1
10
mV
REG
LOAD
Load Regulation
V
IN
=5V, 0mA< I
OUT2
< 300mA
8
18
mV
Load
Transient
V
IN
=5V, I
OUT2
=1mA~300mA in 20us
70
150
mV
V
DROP
Dropout
Voltage
(Note)
I
OUT1
=300mA
1.2
1.35
V
PSRR Ripple Rejection
F
≤
1kHz, 1Vpp at V
IN
= 5V
55
65
dB
C
OUT
Output
Capacitor
C
OUT2
10
µ
F
Note: Dropout voltage definition : V
IN
-V
OUT
when V
OUT
is 2% below the value of V
OUT
for V
IN
= V
OUT
+ 1.4V
Application Circuit
V
OUT1
5
6
7
8
1
2
3
4
V
OUT2
V
IN
10
µ
F
4.7
µ
F
10
µ
F
APL5521
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
4
0
0.5
1
1.5
2
2.5
3
3.5
0
1
2
3
4
5
6
7
8
9
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
-50
-25
0
25
50
75
100
125
3
3.1
3.2
3.3
3.4
-50
-25
0
25
50
75
100
125
Output2 V
oltage (V)
-50 -25
0
25
50
75
100 125 150
1
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
1.5
Typical Characteristics
Output Voltage vs. Input Voltage
Input Voltage (V)
Output V
oltage (V)
Output 1 Voltage vs. Temperature
Temperature (°C)
Output V
oltage (V)
Output2 Voltage vs. Temperature
Temperature (°C)
Dropout Voltage vs. Temperature
Temperature (
°
C)
Drpout V
oltage (V)
I
OUT
=500mA
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
5
0.6
0.8
1
1.2
1.4
1.6
0
100
200
300
400
500
0
2
4
6
8
10
12
14
0
100
200
300
400
500
-30
-25
-20
-15
-10
-5
0
5
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
-0.5
0
0.5
1
1.5
2
2.5
3
3.5
-20
-10
0
10
20
30
40
50
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
0
1
2
3
4
5
6
7
Load Regulation (mV)
Typical Characteristics (Cont.)
Line Transient
Time (ms)
Line Regulation (mV)
Load Transient
Time (ms)
Load Regulation (mV)
Load Regulation vs. Output Current
Output Current (mA)
Dropout Voltage vs. I
OUT
I
OUT
(mA)
Dropout V
oltage (V)
Line Current (A)
Load Current (A)
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
6
Packaging Information
Millimet ers
Inches
Dim
Min.
Max.
Min.
Max.
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.004
0.010
D
4.80
5.00
0.189
0.197
E
3.80
4.00
0.150
0.157
H
5.80
6.20
0.228
0.244
L
0.40
1.27
0.016
0.050
e1
0.33
0.51
0.013
0.020
e2
1.27BSC
0.50BSC
φ
1
8
°
8
°
H
E
e1
e2
0.015X45
D
A
A1
0.004max.
1
L
SOP-8 pin ( Reference JEDEC Registration MS-012)
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
7
Physical Specifications
Reference JEDEC Standard J-STD-020A APRIL 1999
Reflow Condition
(IR/Convection or VPR Reflow)
Pre-heat temperature
183 C
Peak temperature
Time
°
temperature
Classification Reflow Profiles
Convection or IR/
Convection
VPR
Average ramp-up rate(183
°
C to Peak)
3
°
C/second max.
10
°
C /second max.
Preheat temperature 125 ± 25
°
C)
120 seconds max
Temperature maintained above 183
°
C
60 – 150 seconds
Time within 5
°
C of actual peak temperature 10 –20 seconds
60 seconds
Peak temperature range
220 +5/-0
°
C or 235 +5/-0
°
C 215-219
°
C or 235 +5/-0
°
C
Ramp-down rate
6
°
C /second max.
10
°
C /second max.
Time 25
°
C to peak temperature
6 minutes max.
Package Reflow Conditions
pkg. thickness
≥≥≥≥
2.5mm
and all bgas
pkg. thickness < 2.5mm and
pkg. volume
≥≥≥≥
350 mm³
pkg. thickness < 2.5mm and pkg.
volume < 350mm³
Convection 220 +5/-0
°
C
Convection 235 +5/-0
°
C
VPR 215-219
°
C
VPR 235 +5/-0
°
C
IR/Convection 220 +5/-0
°
C
IR/Convection 235 +5/-0
°
C
Terminal Material
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb)
Lead Solderability
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
8
R e lia b ility te s t p ro g ra m
Te s t ite m
M e th o d
D e s c rip tio n
S O L D E R A B IL IT Y
M IL -S T D -8 8 3 D -2 0 0 3
2 4 5
°
C , 5 S E C
H O LT
M IL -S T D -8 8 3 D -1 0 0 5 .7
1 0 0 0 H rs B ia s @ 1 2 5
°
C
P C T
J E S D -2 2 -B , A 1 0 2
1 6 8 H rs , 1 0 0 % R H , 1 2 1
°
C
T S T
M IL -S T D -8 8 3 D -1 0 11 .9
-6 5
°
C ~ 1 5 0
°
C , 2 0 0 C y c le s
E S D
M IL -S T D -8 8 3 D -3 0 1 5 .7
V H B M > 2 K V, V M M > 2 0 0 V
L a tc h -U p
J E S D 7 8
1 0 m s , I
tr
> 1 0 0 m A
Carrier Tape
A
J
B
T2
T1
C
t
Ao
E
W
Po
P
Ko
Bo
D1
D
F
P1
Application
A
B
C
J
T1
T2
W
P
E
SOP-8
330
±
1
62
±
1.5
12.75 +
0.1 5
2 + 0.5
12.4 +0.2
2
±
0.2
12 + 0.3
- 0.1
8
±
0.1
1.75
±
0.1
Application
F
D
D1
Po
P1
Ao
Bo
Ko
t
SOP-8
5.5
±
0.1 1.55
±
0.1 1.55+ 0.25 4.0
±
0.1 2.0
±
0.1 6.4
±
0.1
5.2
±
0.1
2.1
±
0.1 0.3
±
0.013
(mm)
Copyright
ANPEC Electronics Corp.
Rev. A.5 - Oct., 2003
APL5521
www.anpec.com.tw
9
Cover Tape Dimensions
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
Customer Service
Application
Carrier Width
Cover Tape Width
Devices Per Reel
SOP- 8
12
9.3
2500