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PDF APL1541 Data sheet ( Hoja de datos )
| Número de pieza | APL1541 | |
| Descripción | 1A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V | |
| Fabricantes | Anpec Electronics Coropration | |
| Logotipo |  |
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APL1541
1A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V
Features
General Description
• Guaranteed Output Voltage Accuracy within 2%
• Fast Transient Response
• Guaranteed Dropout Voltage at Multiple Cur-
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• Load Regulation : 0.1% Typ.
• Line Regulation : 0.03% Typ.
• Low Dropout Voltage : 1.1V Typ. at IOUT =1A
• Current Limit : 1A Typ. at TJ=125 °C
• On-Chip Thermal Limiting : 150 °C Typ.
• Adjustable Output : 1.25~7.75V
• Standard 8-pin SO Power Package
The APL1541 is a low dropout three-terminal adjust-
able regulators with 1A output current capability. In
order to obtain lower dropout voltage and faster tran-
sient response, which is critical for low voltage ap-
plications , the APL1541 has been optimized.
The device is available in an adjustable version and
fixed output voltages of 3.3V, the output available
voltage range is from 1.25~7.75V with an input sup-
ply below 12V. Dropout voltage is guaranteed at a
maximum of 1.3V at 1A.
Current limit is trimmed to ensure specified output
current and controlled short-circuit current. On-chip
thermal limiting provides protection against any com-
bination of overload that would create excessive junc-
tion temperatures.
Applications
The APL1541 is available in the industry standard 8-
pin SO power package which can be used in appli-
cations where space is limited.
• Peripheral Cards
• Active SCSI Terminators
• Low Voltage Logic Supplies
• Post Regulator for Switching Power Supply
Pin Description
NC 1
8 VOUT
ADJ/GND
VIN
27
APL1541-33
36
VOUT
VOUT
NC 4
5 VOUT
Front View for SO - 8
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.2 - Oct., 2003
1
www.anpec.com.tw
1 page  
APL1541
Typical Characteristics
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Load Transietn Response
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
-100
APL1541-33 0.02
0.01
CIN=10µF
COUT=10µF Tantalum
VIN=5V
0
-0.01
-0.02
-0.03
100 300 500 700 900
Time (µS)
Line Transient Response
APL1541-33
6 0.15
5
4
CIN=10µF
COUT=10µF Tantalum
3 IOUT=0.1A
0.1
0.05
2
0
1
0 -0.05
-20 30
80 130 180
Time (µS)
Dropout Voltage vs. Output Current
1.25
APL1541-33
1.2
1.15
1.1
1.05
1
0.95
0.9
0
0.2 0.4 0.6 0.8
Output Current (A)
1
Output Voltage vs. Input Voltage
APL1541-33
3.5
3
2.5
2
1.5
1
0.5
0
0 12 3 45 6 78 9
Input Voltage (V)
Copyright ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
5
www.anpec.com.tw
5 Page 
APL1541
Physical Specifications
Terminal Material
Lead Solderability
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Reflow Condition (IR/Convection or VPR Reflow)
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TP
tp
R am p-up
Critical Zone
TL to TP
TL
Tsm ax
tL
Tsm in
ts
Preheat
R am p-down
25 t 25 °C to Peak
Classificatin Reflow Profiles
Tim e
Profile Feature
Sn-Pb Eutectic Assembly
Large Body
Small Body
Pb-Free Assembly
Large Body
Small Body
Average ramp-up rate
(TL to TP)
3°C/second max.
3°C/second max.
Preheat
- Temperature Min (Tsmin)
- Temperature Mix (Tsmax)
- Time (min to max)(ts)
100°C
150°C
60-120 seconds
150°C
200°C
60-180 seconds
Tsmax to TL
- Ramp-up Rate
3°C/second max
Tsmax to TL
- Temperature(TL)
- Time (tL)
183°C
60-150 seconds
217°C
60-150 seconds
Peak Temperature(Tp)
225 +0/-5°C
240 +0/-5°C
245 +0/-5°C 250 +0/-5°C
Time within 5°C of actual Peak
Temperature(tp)
10-30 seconds
10-30 seconds
10-30 seconds 20-40 seconds
Ramp-down Rate
6°C/second max.
6°C/second max.
Time 25°C to Peak Temperature
6 minutes max.
8 minutes max.
Note: All temperatures refer to topside of the package. Measured on the body surface.
Copyright ANPEC Electronics Corp.
Rev. A.2 - Oct., 2003
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet APL1541.PDF ] | |
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