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PDF AC1501 Data sheet ( Hoja de datos )
| Número de pieza | AC1501 | |
| Descripción | PWM Buck DC/DC Converter | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AC1501 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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150Khz, 3A PWM Buck DC/DC Converter
AP1501
Features
- Output voltage: 3.3V, 5V, 12V and adjustable
output version
- Adjustable version output voltage range, 1.23V to
37V+4%
- 150Khz +15% fixed switching frequency
- Voltage mode non-synchronous PWM control
- Thermal-shutdown and current-limit protection
- ON/OFF shutdown control input
- Operating voltage can be up to 40V
- Output load current: 3A
- TO220-5L TO220-5L(R) and TO263-5L packages
- Low power standby mode
- Built-in switching transistor on chip
Applications
- Simple High-efficiency step-down regulator
- On-card switching regulators
- Positive to negative converter
General Description
The AP1501 series are monolithic IC that design for
a step-down DC/DC converter, and own the ability
of driving a 3A load without additional transistor
component. Due to reducing the number of external
component, the board space can be saved easily.
The external shutdown function can be controlled
by logic level and then come into standby mode.
The internal compensation makes feedback control
have good line and load regulation without external
design. Regarding protected function, thermal
shutdown is to prevent over temperature operating
from damage, and current limit is against over
current operating of the output switch. The AP1501
series operates at a switching frequency of 150KHz
thus allowing smaller sized filter components than
what would be needed with lower frequency
switching regulators. Other features include a
guaranteed +4% tolerance on output voltage under
specified input voltage and output load conditions,
and +15% on the oscillator frequency. The output
version included fixed 3.3V, 5V, 12V, and an
adjustable type. The packages are available in a
standard 5-lead TO-220 package and a 5-lead
TO-263.
Pin Assignments
Pin Descriptions
( Top View )
Name
Description
5 SD
VIN Operating voltage input
ww Metal Tab GND
w TO263-5L
.D ( Top View )
ataSheTO220-5L
4 FB
3 Gnd
2 Output
1 VIN
5 SD
4 FB
3 Gnd
2 Output
1 VIN
Output
Gnd
FB
SD
Switching output
Ground
Output voltage feedback control
ON/OFF shutdown
et4UThis datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
.c Rev.1.2 Aug. 23, 2005
om 1/12
1 page  
150Khz, 3A PWM Buck DC/DC Converter
AP1501
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
Efficiency
5.10
5.05
VIN =20V, I LOAD=3A
Normalized at TJ=25oC
100
95
90
3A Load
85
5.00 80 5V
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE( oC)
75 3.3V
70
65
8
10 15 20 25 30 35 40
JUNCTION TEMPERATURE( oC)
Switch Saturation Voltage
1.60
1 : -40 oC
2 : 25 oC
1.40 3 : 125 oC
1.20
1.00
1
0.80 2
0.60 3
0.5
12
SWITCH CURRENT(A)
3
Operating Quiescent Current
25.0
20.0
15.0
Switch ON
10.0
Switch OFF
5.0
0.0
-50 -25
0 25
50 75 100 125
JUNCTION TEMPERATURE( oC)
Switch Current Limit
5.50
VIN=12V, VOUT=5V
5.00
4.50
4.00
3.50
-50
-25 0 25 50 75 100 125
JUNCTION TEMPERATURE( oC)
200.0
Shutdown Quiescent Current
160.0
120.0
80.0
1
2
3
40.0
1V:O-N4/O0FoFC=5V
2 : 25 oC
3 : 125 oC
0.0 10 20 30 40
SUPPLY VOLOTAGE (V)
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Aug. 23, 2005
5/12
5 Page 
150Khz, 3A PWM Buck DC/DC Converter
Package Information (Continued)
(2) Package Type: TO263-5L
E
10.9
AP1501
eB
1.0
1.7
Land Pattern Recommendation (Unit: mm)
L1
Symbol
A
B
C
C2
D
E
e
L
L1
L2
Dimensions In Millimeters
Min.
Nom.
Max.
4.07 4.46 4.85
0.66 0.84 1.02
0.36 0.50 0.64
1.14 1.27 1.40
8.65 9.15 9.65
9.78
10.16
10.54
1.57 1.71 1.85
14.61
15.24
15.88
2.29 2.54 2.79
- - 2.92
Dimensions In Inches
Min.
Nom.
Max.
0.160
0.176
0.191
0.026
0.033
0.040
0.014
0.020
0.025
0.045
0.050
0.055
0.341
0.360
0.380
0.385
0.400
0.415
0.062
0.068
0.073
0.575
0.600
0.625
0.090
0.100
0.110
- - 0.115
Anachip Corp.
www.anachip.com.tw
11/12
Rev.1.2 Aug. 23, 2005
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AC1501.PDF ] | |
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