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PDF KP1500 Data sheet ( Hoja de datos )
| Número de pieza | KP1500 | |
| Descripción | 3A PWM Buck Switching Regulator | |
| Fabricantes | KTC | |
| Logotipo |  |
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150Khz, 3A PWM Buck Switching Regulator
KP1500
General Description
Features
The KP1500 series are monolithic integrated
circuits that provide all the active functions for a
step-down DC/DC converter, capable of driving a
3A load without additional transistor component.
Requiring a minimum number of external
component, the board space can be saved easily.
The external shutdown function can be controlled
by TTL 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
KP1500 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(T) package
and a 5-lead TO-263(S).
- 3.3V, 5V, 12V and adjustable output versions
- Adjustable version output voltage range, 1.23V to
28V +4% max over line and load condiction
- Available in TO220-5L and TO263-5L packages
- Voltage mode non-synchronous PWM control
- Thermal-shutdown and current-limit protection
- ON/OFF shutdown control input
- Input voltage range up to 32V
- Output load current: 3A
- 150 kHz fixed frequency internal oscillator
- Low power standby mode
- Built-in switching transistor on chip
Applications
- Simple High-efficiency step-down(buck) regulator
- Efficient preregulator for linear regulators
- On-card switching regulators
- Positive to negative converter
- Battery Charger
Pin Assignments
( Top View )
Metal Tab GND
TO263-5L
5 SD
4 FB
3 Gnd
2 Output
1 VIN
( Top View )
TO220-5L
5 SD
4 FB
3 Gnd
2 Output
1 VIN
Pin Descriptions
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. Kalai Technology 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. 2.0, Feb.15, 2006
1/10
KALAI TECHNOLOGY CORPORATION
1 page  
www.DataSheet4U.com
150Khz, 3A PWM Buck Switching Regulator
KP1500
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
5.10
5.05
VIN =20V, I LOAD=3A
Normalized at TJ=25oC
100
95
Efficiency
3A Load
90
5.00 85 5V
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE(oC)
80
75 3.3V
70
8
10 15 20 25 30 35 40
JUNCTION TEMPERATURE(oC)
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
6.0
VIN=12V, VOUT=5V
5.5
5.0
4.5
4.0
-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)
Kalai Technology Corp.
www.kalai.com.tw
5/10
Rev.2.0 Feb.15, 2006
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet KP1500.PDF ] | |
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