KIA2576FP [KEC]
BIPOLAR LINEAR INTEGRATED CIRCUIT; 双极型线性集成电路
| 型号： | KIA2576FP |
| 厂家： | 
KEC(KOREA ELECTRONICS) |
| 描述： | BIPOLAR LINEAR INTEGRATED CIRCUIT |
| 文件： | 总6页 (文件大小：443K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KIA2576FP/PI00 ~
SEMICONDUCTOR
KIA2576FP/PI12
TECHNICAL DATA
BIPOLAR LINEAR INTEGRATED CIRCUIT
52kHz 3A Step-Down DC/DC Converter.
The KIA2576 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.
I
A
DIM MILLIMETERS
_
J
9.8+0.2
_
8.8+0.2
A
B
C
D
E
F
8.0
_
15+0.3
_
5.0+0.2
The external shutdown function can be controlled by logic level and
then come into standby mode.
_
+
1.7 0.1
N
M
_
+
0.8 0.1
G
I
R
_
+
4.0 0.2
_
O
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 KIA2576 series operates at a switching frequency
of 52kHz thus allowing smaller sized filter components than what
would be needed with lower frequency switching regulators.
+
1.27 0.13
J
L
G
6.7
_
K
L
M
N
O
Q
R
+
0.5 0.15
F
0~0.25
_
1.27+0.1
C
_
2.3+0.3
7.85
0~0.15
Q
K
1
2
3
4
5
Heat Sink is common
to GND
FEATURES
3
Output voltage : 3.3V, 5V, 12V and adjustable output version.
Adjustable version output voltage range, 1.23V to 37V
52 fixed switching frequency.
D2 PAK-5
Voltage mode non-synchronous PWM control.
Thermal-shutdown and current-limit protection.
ON/OFF shutdown control input.
G
H
A
Operating voltage can be up to 40V.
Output load current. : 3A
E
TO-220-5 and D2PAK-5 packages.
Low power standby mode.
DIM MILLIMETERS
_
A
10 0.2
+
_
APPLICATION
I
+
B
C
24.6 0.2
_
3.5 + 0.1
L
Simple High-efficiency step-down regulator.
On-card switching regulators.
Positive to negative converter.
_
0.8 + 0.1
_
3.2 + 0.2
D
E
F
D
1.7
_
F
+
4.5 0.2
M
G
H
I
J
_
+
2.8 0.2
K
0.5
_
3.2 + 0.5
J
_
8.2 + 0.7
K
LINE UP
L
1.5
5.0
2.0
M
N
O
P
ITEM
OUTPUT VOLTAGE (V)
PACKAGE
_
5.0 + 0.5
KIA2576FP/PI00
KIA2576FP/PI33
KIA2576FP/PI50
KIA2576FP/PI12
Adjustable (1.23~37V)
_
16.5 + 0.5
1
2
3
4
5
FP : D2PAK-5
3.3
5.0
PI : TO-220IS-5
TO-220IS-5
12.0
2006. 7. 6
Revision No : 1
1/6
KIA2576FP/PI00 ~ KIA2576FP/PI12
CONNECTION (TOPVIEW)
D2PAK-5 package
TO-220IS-5 package
5 - ON/OFF
4 - Feed Back
3 - Ground
2 - Output
1 - Input
5 - ON/OFF
4 - Feed Back
3 - Ground
2 - Output
1 - Input
APPLICATION CIRCUIT
(1) Fixed Type Circuit
FB
4
L1
100µΗ
V
IN = 12V
Output
VOUT = 3.3V/3A
KIA2576FP33
2
1
VIN
CIN
100µF
C
5
3
O
1000µF
D1
GND
ON/OFF
SMAB33
[ON/OFF control function]
GND : Output ON
High : Output OFF
(2) Adjustable Type Circuit
R1
R2
FB
4
L1
100µH
Output
VIN = 12V
VOUT = 3.3V/3A
2
1
KIA2576FP00
VIN
CIN
100µF
5
3
C
O
1000µF
GND
D1
SMAB33
ON/OFF
[ON/OFF control function]
GND : Output ON
High : Output OFF
R2
V
= V
(1 +
)
OUT
FB
R1
V
= 1.23V
FB
R = 1kΩ∼3kΩ
2
R < 1kΩ
1
2006. 7. 6
Revision No : 1
2/6
KIA2576FP/PI00 ~ KIA2576FP/PI12
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTIC
Supply Voltage
SYMBOL
VIN
RATING
45
UNIT
V
V
V
V
VON/OFF
VFB
ON/OFF Pin input Voltage
Feedback Pin Voltage
-0.3 ~ +25
-0.3 ~ +25
-1
VOUT
Output Voltage to Ground
PI
FP
PI
1.5
PD1
PD2
Power Dissipation 1
Power Dissipation 2
W
W
2.0
15
FP
35
Tstg
Topr
Vopr
Storage Temperature
Operating Temperature
Operating Voltage
-65 ~ +150
-40 ~ +125
+5 ~ +40
V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN=12V for 3.3V, 5V, adjustable version and VIN=24V for the 12V version. ILOAD = 0.5A
CHARACTERISTIC
Feedback Bias Current
SYMBOL
IFB
TEST CONDITION
MIN.
TYP.
40
MAX.
UNIT
nA
60
100
58
1.4
1.5
-
VFB=1.3V (Adjustable version only)
-
47
-
FOSC
Oscillator Frequency
Saturation Voltage
-
52
kHz
V
IOUT=3A, no outside circuit
FB=0V force driver on
VSAT
1.3
V
VFB=0V force driver on
Max. Duty Cycle (ON)
Max. Duty Cycle (OFF)
-
-
100
0
DC
Ilimit
IL
%
A
VFB=12V force driver off
peak current no outside circuit
FB=0V force driver on
-
Current Limit
3.6
4.5
6.9
V
no outside circuit, VFB=12V force driver off
VIN=40V
Output = 0
-
-
-
-
50
30
A
mA
mA
Output Leakage
Current
Output = -1
2
5
IQ
VFB=12V force driver off
Quiescent Current
10
500
600
0.6
-
ISTBY
ON/OFF pin=5V VIN=40V
Standby Quiescent Current
-
300
1.3
A
V
VIL
VIH
IH
Low (regulator ON)
High (regulator OFF)
VLOGIC=2.5V (OFF)
-
2.0
-
ON/OFF pin Logic Input
Threshold Voltage
ON/OFF Pin Logic Input Current
ON/OFF Pin Input Current
5
15
A
IL
VLOGIC=0.5V (ON)
-
0.02
5
ELECTRICAL CHARACTERISTICS
CHARACTERISTIC
SYMBOL
TEST CONDITION
TYP.
LIMIT
UNIT
V
1.193/1.18
1.267/1.28
5V<VIN<40V, 0.2A ILOAD 3A
VFB
VMIN
VMAX
Output Feedback
KIA2576FP/PI00
1.23
73
3.3
73
5
V
OUT programmed for 3V
VIN = 12V, ILOAD=3A
Efficiency
-
%
V
VMIN
VMAX
5V<VIN<40V,
0.2A ILOAD 3A
3.168/3.135
3.432/3.465
VOUT
VOUT
VOUT
Output Voltage
KIA2576FP/PI33
VIN = 12V, ILOAD=3A
Efficiency
-
%
V
VMIN
VMAX
7.5V<VIN<40V,
0.2A ILOAD 3A
4.8/4.75
5.2/5.25
Output Voltage
KIA2576FP/PI50
VIN=12V, ILOAD=3A
Efficiency
80
12
90
-
%
V
VMIN
VMAX
11.52/11.4
12.48/12.6
Output Voltage
15V<VIN<40V, 0.2A ILOAD 3A
VIN=15V, ILOAD=3A
KIA2576FP/PI12
Efficiency
-
%
Specifications with boldface type are for full operating temperature range, the other type are for Tj=25
2006. 7. 6
Revision No : 1
3/6
KIA2576FP/PI00 ~ KIA2576FP/PI12
LINE REGULATION
NORMALIZED OUTPUT VOLTAGE
1.5
1.0
0.5
0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
ILOAD =500mA
TJ=25
C
3.3V, 5V, 12V & ADJ
-0.5
-1.0
-1.5
VIN=20V
LOAD = 3A
Normalized at
Tj=25 C
-0.2
-0.4
-0.6
I
0
10
20
30
40
50
60
-50
-25
0
25
50
75
100
125
OUTPUT VOLTAGE (V)
JUNCTION TEMPERATURE (
)
C
EFFICIENCY
SWITCH SATURATION VOLTAGE
95
90
85
80
75
70
65
1.4
VIN = 12V
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
T = -40 C
j
5V
25 C
125 C
3.5V
0
1
2
3
4
0
5
10
15
20
25
30
35
40
SWITCH CURRENT (A)
INPUT VOLTAGE(V)
SWITCH CURRENT LIMIT
DROPOUT VOLTAGE
5.5
5.0
4.5
4.0
3.5
1.6
1.4
1.2
1.0
0.8
0
L = 100µH
VIN = 12V
VOUT = 5V
RIND = 0.04Ω
VOUT = VREG = 50mV
I
= 3A
LOAD
I
= 1A
LOAD
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE (
)
JUNCTION TEMPERATURE ( )
C
C
2006. 7. 6
Revision No : 1
4/6
KIA2576FP/PI00 ~ KIA2576FP/PI12
OPERATING QUIESCENT CURRENT
SHUTDOWN QUIESCENT CURRENT
24
20
16
12
8
500
400
300
200
100
50
5V < VIN < 40V
SWITCH = 0
VON/OFF = 5V
I
T = 25
C
j
Switch ON
Switch OFF
Tj = -40 C AND 125 C
4
0
0
-50
-25
0
25
50
75
100
125
0
10
20
30
40
JUNCTION TEMPERATURE (
)
SUPPLY VOLTAGE (V)
C
MINIMUM OPERATING VOLTAGE
ON/OFF THRESHOLD VOLTAGE
5
4
3
2
1
0
2.5
2.0
1.5
1.0
0.5
0
OFF
ON
VOUT = 1.23V
LOAD = 120mA
I
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE (
)
JUNCTION TEMPERATURE ( )
C
C
SWITCHING FREQUENCY
ON/OFF PIN CURRENT (SINKING)
57
8
7
6
5
4
3
2
1
0
VIN=40V
-40C Tj 125C
52
47
42
0
0
5
10
15
20
25
-50
-25
0
25
50
75
100
)
125
JUNCTION TEMPERATURE (
ON/OFF PIN VOLTAGE (V)
Revision No : 1
C
2006. 7. 6
5/6
KIA2576FP/PI00 ~ KIA2576FP/PI12
FEEDBACK PIN BIAS CURRENT
POWER DISSIPATION-1 (TO-220IS-5)
10
7.5
5.0
2.5
0
20
15
10
5
THERMAL RESISTANCE
J-A
8.33 83.3
J-C
C/W
-2.5
Adjustable Version Only
0
-5.0
-50
-25
0
25
50
75
100
125
-25
0
50
100
150
AMBIENT TEMPERATURE Ta (
)
C
JUNCTION TEMPERATURE (
)
C
POWER DISSIPATION-2 (D2PAK-5)
40
35
30
25
THERMAL RESISTANCE
J-A
J-C
3.6
C/W
62.5
20
15
10
5
0
-25
0
25
50
75
100
125 150
AMBIENT TEMPERATURE Ta (
)
C
2006. 7. 6
Revision No : 1
6/6
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