APL5551
Dual Channel 500mA/500mA Regulator + Reset IC
Features
•
•
Low Quiescent Current : 110µA (No load)
Low Dropout Voltage :
V
DROP1
= 450mV @ 500mA
V
DROP2
= 500mV @ 500mA
•
Fixed Output Voltage :
V
OUT1
= 3.3V/500mA
V
OUT2
= 2.8V/500mA
•
•
•
•
•
•
•
•
•
Stable with 4.7µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors
Built in Thermal Protection
Fast Transient Response
Short Setting Time
SOP-8, SOP-8-P with Thermal Pad Packages
Adjustment-free Reset Detection Voltage :
3.9V or 4.2V typ
Easy to Set Delay Time from Voltage
Detection to Reset Release
Lead Free Available (RoHS Compliant)
General Description
The APL5551 is a dual-channel regulator with reset
function (specific voltage monitoring), and internal
delay circuit, set to detect 3.9V or 4.2V. Maximum
input voltage is 6V, and both output1 and output2 can
deliver up to 450mA. The typical dropout voltage of
both channel is 500mV at 500mA loading. Design with
an internal P-channel MOSFET pass transistor, the
APL5551 maintains a low supply current. Other features
include, thermal-shutdown protection, current limit
protection to ensure specified output current. The
APL5551 comes in miniature SOP-8 and SOP-8-P
packages.
Pin Configuration
SOP-8 (Top View)
V
IN
V
OUT1
Cd
V
DET
SOP-8-P( Top View)
V
IN
V
OUT1
Cd
V
DET
1
2
3
4
8
7
6
5
CONT
GND
RESET
V
OUT2
1
2
3
4
8
7
6
5
CONT
GND
RESET
V
OUT2
Applications
•
Optical Storage System
= Thermal Pad
(connected to GND plane for better heat
dissipation)
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 - Aug., 2005
1
www.anpec.com.tw
APL5551
Ordering and Marking Information
APL5551 -
Lead Free Code
Handling Code
Temp. Range
Package Code
Detection Voltage
APL5551X
XXXXX
Package Code
K : SOP-8
KA : SOP-8-P
Temp. Range
I : -40 to 85
°
C
Handling Code
TR : Tape & Reel
Detection Voltage :
A : 3.9V
B : 4.2V
Lead Free Code
L : Lead Free Device
Blank : Original Device
X
- Detection Voltage
XXXXX - Date Code
APL5551 K / KA:
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 soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
Pin Description
PIN
No.
1
2
3
4
5
6
7
8
Name
V
IN
V
OUT1
Cd
V
DET
V
OUT2
RESET
GND
CONT
I
I/O
I
O
O
I
O
O
Voltage supply input pin.
Regulator output pin.
Delay time capacitor pin, RESET pin output delay time can be set by
the capacitor connected to the Cd pin. tPLH = 130000∗C, tPLH :
transmission delay time (s), C:capacitor value (F)
Input pin of voltage detection.
Regulator output pin.
Input voltage detection output pin , high = V
DET
<VS , low = V
DET
>VS
GND pin
V
OUT1
on/off-control pin, V
OUT1
will be turn off when CONT pull to low.
Description
Absolute Maximum Ratings
Symbol
V
IN
, V
OUT
CONT
V
DET
R
TH,JA
Parameter
Input Voltage or Out Voltage
V
OUT1
Shutdown Control Pin
RESET Pin Supply Voltage
Thermal Resistance – Junction to Ambient
SOP-8
SOP-8-P
2
Rating
6.5
6.5
6.5
150
80
Unit
V
V
V
°C/W
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Aug., 2005
www.anpec.com.tw
APL5551
Absolute Maximum Ratings (Cont.)
Symbol
R
TH,JC
Parameter
Thermal Resistance – Junction to Case
SOP-8
SOP-8-P
Power Dissipation at TA = 55
°
C (Note)
SOP-8
SOP-8-P
Operating Junction Temperature
Control Section
Power Transistor
T
STG
T
L
Storage Temperature Range
Lead Temperature (Soldering, 10 second)
Rating
30
5
0.7
1.4
0 to 125
0 to 170
-65 to +150
260
°C
°C
Unit
°
C/W
P
D
T
J
W
°
C
Note: When mounted on a (Copper foil area 60%, 60x45x1.6
t
mm) glass exoxy board.
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature , V
IN
= 5V, C
IN
= 1µF, C
OUT1
= 4.7µF,
C
OUT2
= 4.7µF, C
ONT
= V
IN
, T
A
= -40 to 85°C . Typical values refer to T
A
= 25°C .
APL5551
Min.
Typ. Max.
6
100
200
70
140
0.1
1.6
-0.3
V
DET
= 5V
V
IN
= 5V
V
IN
= 5V
V
OUT
+0.5V< V
IN
<6.0V, I
OUT
= 10mA
V
IN
= 5V, 0mA < I
OUT
< I
MAX
I
OUT
= 500mA
F
≤
1kHz, 1Vpp at I
OUT
= 50mA
3
Symbol
V
IN
I
Q
Parameter
Input Voltage
Quiescent Current
Shutdown Supply
Current
Test Conditions
Unit
V
µ
A
µA
µ
A
V
µ
A
V
mA
mA
mV
mV
mV
dB
I
OUT1
= 0mA, I
OUT2
= 0mA
CONT = low,
I
OUT2
= 0mA
V
CONT
= V
IN
Shutdown Input Bias
current
High Threshold Voltage
V
CONT
Low Threshold Voltage
I
CCQ
V
DET
Input Current
Regulator1
V
OUT1
Output Voltage
I
LIMIT
Circuit Current Limit
I
OUT
Load Current
REG
LINE
Line Regulation
REG
LOAD
Load Regulation
Dropout Voltage
(Note)
V
DROP
(VOUT (Nominal) = 3.3V
Version)
PSRR Ripple Rejection
I
CONT
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Aug., 2005
20
3.234
500
4
25
450
45
55
3.3
800
V
IN
+0.3
0.4
40
3.366
6
60
600
www.anpec.com.tw
APL5551
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature , V
IN
= 5V, C
IN
= 1µF, C
OUT1
= 4.7µF,
C
OUT2
= 4.7µF, C
ONT
= V
IN
, T
A
= -40 to 85°C . Typical values refer to T
A
= 25°C .
Symbol
OTS
Parameter
Over Temperature
Shutdown
Over Temperature
Shutdown Hysteresis
Test Conditions
APL5551
Typ.
Max.
Min.
155
Hysteresis
170
15
100
4.7
0.01
V
IN
= 5V
V
IN
= 5V
500
V
OUT
+0.5V< V
IN
<6.0V, I
OUT
= 10mA
V
IN
=5V, 0mA< I
OUT
< I
MAX
I
OUT
= 500mA
F
≤
1kHz, 1Vpp at I
OUT
= 50mA
45
4
25
500
55
170
Hysteresis
15
100
4.7
0.01
V
DET
= HàL (APL5551A)
V
DET
Unit
°C
°
C
TC
C
OUT
Regulator2
V
OUT2
I
LIMIT
I
OUT
Output Voltage
T = -20 ~ 80°C
Temperature Coefficient
a
Output Capacitor
ESR
Output Voltage
Circuit Current Limit
Load Current
200
ppm/°C
µF
1
2.8
800
6
60
650
2.856
Ω
V
mA
mA
mV
mV
mV
dB
°C
°C
2.744
REG
LINE
Line Regulation
REG
LOAD
Load Regulation
V
DROP
PSRR
OTS
Dropout Voltage
(Note)
(VOUT (Nominal) =
2.8V Version)
Ripple Rejection
Over Temperature
Shutdown
Over Temperature
Shutdown Hysteresis
TC
C
OUT
Output Voltage
T = -20 ~ 80°C
Temperature Coefficient
a
Output Capacitor
ESR
200
ppm/°C
µF
1
3.9
4.2
100
3.978
4.284
Ω
RESET / RESET
VS
△VS/△T
△VS
Detection Voltage
Vs Temperature
Coefficient
Hysteresis Voltage
3.822
4.116
= HàL (APL5551B)
V
ppm/°C
230
mV
T
a
= -20~+80°C
V
DET
= HàL
130
180
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Aug., 2005
4
www.anpec.com.tw
APL5551
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature , V
IN
= 5V, C
IN
= 1µF, C
OUT1
= 4.7µF,
C
OUT2
= 4.7µF, C
ONT
= V
IN
, T
A
= -40 to 85°C . Typical values refer to T
A
= 25°C .
APL5551
Min.
Typ.
Max.
Symbol
RESET / RESET
V
OL
I
OH
I
OL1
I
OL2
t
PLH
t
PLH1
t
PHL
V
OPL
Parameter
Test Conditions
Unit
Low-level Output Voltage
Output Leakage Current
Output Current1
Output Current2
V
DET
= 3.9V, R
L
= 4.7kΩ
V
DET
= 5V
V
DET
= 3.9V, V
RESET
= 0.4V
V
DET
= 3.9V, V
RESET
= 0.4V
T
A
= -20 ~ +80
°
C
V
DET
=
3.7Và5V, Cd = 0.1µ F
10
8
22
0.5
14
14
42
8
13
4
0.95
60
1
mV
µA
mA
mA
“H” Transmission Delay Time Cd = 0µ F
Reset Delay Time
“L” Transmission Delay Time Cd = 0µ F
Threshold Operating Voltage V
RESET
= 0.4V
90
18
90
1.25
µs
ms
µs
V
Application Circuit
V
IN
1µF
4.7kΩ
R
L
V
DET
RESET
Cd
APL5551
V
OUT1
GND
V
OUT2
CONT
C
OUT2
4.7µF
C
OUT1
4.7µF
0.1µF
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Aug., 2005
5
www.anpec.com.tw