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PDF AP1501A Data sheet ( Hoja de datos )
| Número de pieza | AP1501A | |
| Descripción | 5A PWM Buck DC/DC Converter | |
| Fabricantes | Anachip | |
| Logotipo |  |
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150Khz, 5A PWM Buck DC/DC Converter
AP1501A
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: 5A
- 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 AP1501A series are monolithic IC that design
for a step-down DC/DC converter, and own the
ability of driving a 5A 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 AP1501A 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 )
Metal Tab GND
TO263-5L
5 SD
4 FB
3 Gnd
2 Output
1 VIN
( Top View )
5 SD
4 FB
3 Gnd
2 Output
1 VIN
TO220-5L/TO220-5L(R)
Name
VIN
Output
Gnd
FB
SD
Description
Operating voltage input
Switching output
Ground
Output voltage feedback control
ON/OFF shutdown
This 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.
Rev.1.2 Aug 23, 2005
1/12
1 page  
150Khz, 5A PWM Buck DC/DC Converter
AP1501A
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
5A Load
85
5.00 80 5V
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE( oC)
75
70 3.3V
65
8
10 15 20 25 30 35 40
Input Voltage
Switch Saturation Voltage
1.7
1 : -40 oC
2 : 25 oC
1.6 3 : 125 oC
1.5
1.4
1
1.3 2
1.2 3
2.0
34
SWITCH CURRENT(A)
5
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
7.5
VIN=12V, VOUT=5V
7.0
6.5
6.0
5.5
-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, 5A PWM Buck DC/DC Converter
Package Information (Continued)
(2) Package Type: TO263-5L
E
AP1501A
10.9
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 AP1501A.PDF ] | |
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