Dual-Channel, 3.3V/500mA and 1.8V/300mA Linear Regulator
FeaturesGeneral Description
••
• Fixed Output Voltage :
••
VOUT1=3.3V/500mA
VOUT2=1.8V/300mA
••
• Low Dropout Voltage (defined as the minimum
••
input/output voltage difference):
Output 1 Dropout Voltage : 0.6V (at 500mA)
Output 2 Dropout Voltage : 0.9V (at 300mA)
••
• Stable with 4.7uF Output Capacitor(at VOUT1)
••
Stable with 2.2uF Output Capacitor(at VOUT2)
••
• Built in Thermal Protection
••
••
• Built in Current Limit Protection
••
••
• Fast transient Response
••
••
• Short Setting Time
••
••
• SOP-8 and SOP-8-P Package Available
••
Applications
• Desktop Computer
• Networking Systems
• Optical Data Storage Systems
The APL5523 is a dual low dropout regulator with
output1 with 3.3V/0.5A and output2 with 1.8V/0.3A
output capability. In order to obtain lower dropout
voltage and faster transient response, which is critical for low voltage applications, the APL5223 has
been optimized. The dropout voltages are guaranteed at 0.6V at 0.5A for output1 and 0.9V at 0.3A for
output 2. Current limit is trimmed to ensure specified output current and controlled short-circuit current.
On-chip thermal limiting provides protection against
any combination of overload that would create excessive junction temperatures. The APL5523 regu-
lator comes in a SOP-8 and SOP-8-P package.
Pin Configuration
SOP−8 (Top View)
OUT1
V
V
OUT2
1
IN
2
V
IN
V
3
4
= Thermal Pad
(connected to GND plane for better heat
dissipation)
SOP-8-P (Top View)
8
7
6
5
GND
GND
GND
GND
V
V
OUT1
V
V
OUT2
1
IN
2
IN
3
4
8
NC
GND
7
6
NC
5
NC
Ordering and Marking Information
APL5523
Lead Free Code
Handling Code
Tem p. Range
Package Code
APL5523 K/KA :
APL5523
XXXXX
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.
Package Code
K : S OP-8 K A : S O P-8-P
Operating Junction Tem p. Range
C : 0 to 1 5 0° C
Handling Code
TU : Tube TR : Tape & Reel
Lead Free Code
L : Lead Free Device Blank : Original Device
XXXXX - Date Code
www.anpec.com.tw1
APL5523
Pin Description
PIN
No. Name
1 V
OUT1
O V
I/O Description
OUT1
output Voltage 3.3V. sources up to 500 mA.
2 VIN I Supply Voltage.
3 VIN I Supply Voltage.
4 V
OUT2
O V
OUT2
output Voltage 1.8V. sources up to 300 mA.
5 GND
6 GND
7 GND
Ground also functions as a heatsink. Solder to the ground plane to
maximize thermal dissipation
8 GND
Absolute Maximum Ratings
Symbol Parameter Rating Unit
OUT
VIN, V
R
R
Input Voltage or Ou t Voltage 6 V
TH,JA
Thermal Resistance – Junction to Ambient
TH,JC
PD
TJ
SOP-8 150
SOP-8-P 75
Thermal Resistance – Junction to Case
SOP-8 30
SOP-8-P 5
Po w e r Dissipation Inte rn a lly L imited W
Operating Junction Temperature
°C/W
°C/W
°C
Control Section 0 to 125 Power Transistor 0 to 150
TST G Storage Temperature Range -65 to +150
TL Lead Temperature (Soldering, 10 second) 260
°C
°C
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, CIN=1µF, COUT1=4.7µF,
COUT2=2.2µF, TJ=0 to 125°C. Typical values refer to TJ=25°C.
Terminal Material Solder-P lated C opp er (S olde r M a terial : 90/10 or 63 /37 S nPb) , 100 %Sn
Lead Solderability Meets EIA Spec ific ation R SI86 - 91 , AN SI/J- S T D-002 Category 3.
Reflow Condition (IR/Convection or VPR Reflow)
T
P
Ramp-up
T
L
Tsmax
Tsmin
Temperature
ts
Preheat
25
°
t 25 C to Pe a k
Classificatin Reflow Profiles
tp
Ramp-down
Time
Critical Zone
T
to T
L
P
t
L
Profile Feature
Average ramp-up rate
(T
to TP)
L
Preheat
- Temperature Min (Tsmin)
- Temperature Mix (Tsmax)
- Time (min to max)(ts)
Tsmax to T
L
Sn-Pb Eutectic Assembly Pb-Free Assembly
Large Body Small Body Large Body Small Body
3°C/second max. 3°C/second max.
100°C
150°C
60-120 seconds
- Ramp-up Rate
Tsmax to TL
- Temperature(T
- Time (t
)
L
Peak Temperature(Tp)
Time within 5°C of actual Peak
Temperature(tp)
Ramp-down Rate
Time 25°C to Peak Temperature
Note: All temperatures refer to topside of the package. Measured on the body surface.
SOLDERA BILITYMIL-STD-883D-2003
HO LTMIL-STD-883D-1005.7
PCTJESD-22-B, A102
TSTMIL-STD-883D-1011.9
ESDMIL-STD-883D-3015.7VHBM > 2KV, VMM > 200V
La tc h -UpJ E S D 7 810 ms , Itr > 100mA