KF25BDT-TR [STMICROELECTRONICS]
Very low drop voltage regulators with inhibit; 非常低压降稳压器与抑制
| 型号： | KF25BDT-TR |
| 厂家： | 
ST |
| 描述： | Very low drop voltage regulators with inhibit |
| 文件： | 总22页 (文件大小：741K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KFxxB
Very low drop voltage regulators with inhibit
Features
■ Very low dropout voltage (0.4 V)
■ Very low quiescent current (typ. 50 µA in OFF
Mode, 500 µA in ON Mode)
■ Output current up to 500 mA
■ Logic-controlled electronic shutdown
■ Output voltages of 1.5; 2.5; 3; 3.3; 4; 5; 5.2; 6; 8
■ Internal current and thermal limit
■ Only 2.2 µF for stability
DPAK
SO-8
■ Available in 2 % accuracy at 25 °C
■ Supply voltage rejection: 70 db (typ.)
■ Temperature range: -40 to 125 °C
Description
The KFxx series are very low drop regulators
available in SO-8 package and in a wide range of
output voltages.
The very low drop voltage (0.4 V) and the very low
quiescent current make them particularly
suitable for low noise, low power applications and
specially in battery powered systems.
A shutdown logic control function is available (pin
5, TTL compatible). This means that when the
device is used as a local regulator, it is possible to
put a part of the board in standby, decreasing the
total power consumption. It requires only a 2.2 µF
capacitor for stability allowing space and cost
saving.
Table 1.
Device summary
Part numbers
KF15B
KF25B
KF30B
KF33B
KF40B
KF50B
KF52B
KF80B
December 2007
Rev 10
1/22
www.st.com
22
Contents
KFxxB
Contents
1
2
3
4
5
6
7
8
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2/22
KFxxB
1
Diagram
Diagram
Figure 1.
Schematic diagram
3/22
Pin configuration
KFxxB
2
Pin configuration
Figure 2.
Pin connections (top view)
SO-8
DPAK
4/22
KFxxB
3
Maximum ratings
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VI
IO
DC input voltage
-0.5 to 20
Internally Limited
Internally Limited
-40 to 150
V
Output current
PTOT
TSTG
TOP
Power dissipation
Storage temperature range
Operating junction temperature range
°C
°C
-40 to 125
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Table 3.
Symbol
Thermal data
Parameter
DPAK
SO-8
Unit
RthJC
Thermal resistance junction-case
8
20
°C/W
Figure 3.
Test circuit
5/22
Electrical characteristics
KFxxB
4
Electrical characteristics
Table 4.
Electrical characteristics for KF15 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 3.5 V
Min.
Typ.
Max.
Unit
I
1.47
1.44
2.5
1.5
1.53
1.56
20
VO
V
IO = 50 mA, VI = 3.5 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
2
ΔVO
ΔVO
VI = 2.5 to 20 V, IO = 5 mA
VI = 2.8 V, IO = 5 to 500 mA
12
50
1
mV
mV
Load regulation
2
VI = 2.5 to 20V, IO = 0mA
ON MODE
VI = 2.8 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
82
77
60
50
1
SVR Supply voltage rejection
I
O = 5 mA, VI = 3.5 1 V
dB
f = 10 kHz
eN
Vd
VIL
VIH
II
Output noise voltage
Dropout voltage
B = 10 Hz to 100 kHz
IO = 200 mA
µV
V
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
6/22
KFxxB
Electrical characteristics
Table 5.
Electrical characteristics for KF25 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 4.5 V
Min.
Typ.
Max.
Unit
I
2.45
2.4
2.5
2.55
2.6
20
VO
V
IO = 50 mA, VI = 4.5 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
2
ΔVO
ΔVO
VI = 3.5 to 20 V, IO = 5 mA
VI = 3.8 V, IO = 5 to 500 mA
12
50
1
mV
mV
Load regulation
2
VI = 3.5 to 20V, IO = 0mA
ON MODE
VI = 3.8 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
82
77
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 4.5 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
7/22
Electrical characteristics
KFxxB
Table 6.
Electrical characteristics for KF30 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 5 V
Min.
Typ.
Max.
Unit
I
2.94
2.88
3
3.06
3.12
20
VO
V
IO = 50 mA, VI = 5 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
2
ΔVO
ΔVO
VI = 4 to 20 V, IO = 5 mA
12
50
1
mV
mV
Load regulation
VI = 4.3 V, IO = 5 to 500 mA
2
VI = 4 to 20V, IO = 0mA
ON MODE
VI = 4.3 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
81
76
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 5 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
8/22
KFxxB
Electrical characteristics
Table 7.
Electrical characteristics for KF33 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 5.3 V
Min.
Typ.
Max.
Unit
I
3.234
3.168
3.3
3.366
3.432
20
VO
V
IO = 50 mA, VI = 5.3 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
2
ΔVO
ΔVO
VI = 4.3 to 20 V, IO = 5 mA
VI = 4.6 V, IO = 5 to 500 mA
12
50
1
mV
mV
Load regulation
2
VI = 4.3 to 20V, IO = 0mA
ON MODE
VI = 4.6 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
80
75
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 5.3 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
9/22
Electrical characteristics
KFxxB
Table 8.
Electrical characteristics for KF40 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 6 V
Min.
Typ.
Max.
Unit
I
3.92
3.84
4
4.08
4.16
20
VO
V
IO = 50 mA, VI = 6 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
3
ΔVO
ΔVO
VI = 5 to 20 V, IO = 5 mA
18
50
1
mV
mV
Load regulation
VI = 5.3 V, IO = 5 to 500 mA
2
VI = 5 to 20V, IO = 0mA
ON MODE
VI = 5.3 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
78
73
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 6 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
10/22
KFxxB
Electrical characteristics
Table 9.
Electrical characteristics for KF50 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 7 V
Min.
Typ.
Max.
Unit
I
4.9
4.8
5
5.1
5.2
20
VO
V
IO = 50 mA, VI = 7 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
3
ΔVO
ΔVO
VI = 6 to 20 V, IO = 5 mA
18
50
1
mV
mV
Load regulation
VI = 6.3 V, IO = 5 to 500 mA
2
VI = 6 to 20V, IO = 0mA
ON MODE
VI = 6.3 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
76
71
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 7 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
11/22
Electrical characteristics
KFxxB
Table 10. Electrical characteristics for KF52 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 7.2 V
Min.
Typ.
Max.
Unit
I
5.096
4.992
5.2
5.304
5.408
20
VO
V
IO = 50 mA, VI = 7.2 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
3
ΔVO
ΔVO
VI = 6.2 to 20 V, IO = 5 mA
VI = 6.5 V, IO = 5 to 500 mA
18
50
1
mV
mV
Load regulation
2
VI = 6.2 to 20V, IO = 0mA
ON MODE
VI = 6.5 to 20V, IO=500mA
0.5
mA
µA
Id
Quiescent current
12
100
VI = 6 V
OFF MODE
f = 120 Hz
f = 1 kHz
50
76
71
60
50
0.2
0.4
SVR Supply voltage rejection
I
O = 5 mA, VI = 7.2 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
12/22
KFxxB
Electrical characteristics
Table 11. Electrical characteristics for KF80 (refer to the test circuits, T = 25 °C, C = 0.1 µF,
J
I
C = 2.2 µF unless otherwise specified.)
O
Symbol
Parameter
Output voltage
Test conditions
O = 50 mA, VI = 10 V
Min.
Typ.
Max.
Unit
I
7.84
7.68
8
8.16
8.32
20
VO
V
IO = 50 mA, VI = 10 V, Ta = -25 to 85°C
IO = 500 mA
VI
IO
Operating input voltage
Output current limit
Line regulation
V
A
1
4
ΔVO
ΔVO
VI = 9 to 20 V, IO = 5 mA
24
50
mV
mV
Load regulation
VI = 9.3 V, IO = 5 to 500 mA
2
VI = 9 to 20V, IO = 0mA
ON MODE
0.7
1.5
12
mA
µA
Id
Quiescent current
VI = 9.3 to 20V, IO=500mA
VI = 9 V
OFF MODE
f = 120 Hz
f = 1 kHz
70
72
67
60
50
0.2
0.4
140
SVR Supply voltage rejection
I
O = 5 mA, VI = 10 1 V
dB
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
B = 10 Hz to 100 KHz
IO = 200 mA
µV
V
0.35
0.7
IO = 500 mA
VIL
VIH
II
Control input logic low
Control input logic high
Control input current
Ta = -40 to 125°C
Ta = -40 to 125°C
VI = 6 V, VC = 6 V
0.8
V
V
2
2
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 500 mA
µF
13/22
Typical performance characteristics
KFxxB
5
Typical performance characteristics
(unless otherwise specified V
= 3.3 V)
O(NOM)
Figure 4.
Figure 6.
Figure 8.
Dropout voltage vs output current Figure 5.
Dropout voltage vs temperature
Supply current vs input voltage
Figure 7.
Supply current vs input voltage
Short circuit current vs input
voltage
Figure 9.
Supply current vs temperature
14/22
KFxxB
Package mechanical data
6
Package mechanical data
®
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
15/22
Package mechanical data
KFxxB
SO-8 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
Min.
Max.
A
A1
A2
B
1.35
0.10
1.10
0.33
0.19
4.80
3.80
1.75
0.053
0.069
0.010
0.065
0.020
0.010
0.197
0.157
0.25
1.65
0.51
0.25
5.00
4.00
0.04
0.043
0.013
0.007
0.189
0.150
C
D
E
e
1.27
0.050
H
5.80
0.25
0.40
6.20
0.50
1.27
0.228
0.010
0.016
0.244
0.020
0.050
h
L
k
8° (max.)
ddd
0.1
0.04
0016023/C
16/22
KFxxB
Package mechanical data
DPAK mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
A
A1
A2
B
2.2
0.9
2.4
1.1
0.23
0.9
5.4
0.6
0.6
6.2
0.086
0.035
0.001
0.025
0.204
0.017
0.019
0.236
0.094
0.043
0.009
0.035
0.212
0.023
0.023
0.244
0.03
0.64
5.2
b4
C
0.45
0.48
6
C2
D
D1
E
5.1
0.200
6.4
6.6
0.252
0.260
E1
e
4.7
0.185
0.090
2.28
e1
H
4.4
9.35
1
4.6
0.173
0.368
0.039
0.181
0.397
10.1
L
(L1)
L2
L4
R
2.8
0.8
0.110
0.031
0.6
0°
1
0.023
0.039
8°
0.2
0.008
V2
8°
0°
0068772-F
17/22
Package mechanical data
KFxxB
Tape & reel SO-8 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
330
Min.
Max.
A
12.992
0.519
C
D
12.8
20.2
60
13.2
0.504
0.795
2.362
N
T
22.4
8.5
5.9
2.3
4.1
8.1
0.882
0.335
0.232
0.090
0.161
0.319
Ao
Bo
Ko
Po
P
8.1
5.5
2.1
3.9
7.9
0.319
0.216
0.082
0.153
0.311
18/22
KFxxB
Package mechanical data
Tape & reel DPAK-PPAK mechanical data
mm.
Typ.
inch.
Typ.
Dim.
Min.
Max.
330
Min.
Max.
12.992
0.519
A
C
12.8
20.2
60
13.0
13.2
0.504
0.795
2.362
0.512
D
N
T
22.4
7.00
10.60
2.75
4.1
0.882
0.2.76
0.417
0.105
0.161
0.319
Ao
Bo
Ko
Po
P
6.80
10.40
2.55
3.9
6.90
10.50
2.65
4.0
0.268
0.409
0.100
0.153
0.311
0.272
0.413
0.104
0.157
0.315
7.9
8.0
8.1
19/22
Order codes
KFxxB
7
Order codes
Table 12. Order codes
Packages
Output voltage
SO-8 (Tape and reel)
DPAK (Tape and reel)
KF15BDT-TR
KF25BDT-TR
1.5 V
2.5 V
3 V
KF25BD-TR
KF30BD-TR
KF33BD-TR
KF40BD-TR
KF50BD-TR
KF52BD-TR
KF80BD-TR
KF33BDT-TR
KF40BDT-TR
KF50BDT-TR
3.3 V
4 V
5 V
5.2 V
8 V
KF80BDT-TR
20/22
KFxxB
Revision history
8
Revision history
Table 13. Document revision history
Date
Revision
Changes
06-Jun-2007
14-Dec-2007
9
Order codes has been updated and the document has been reformatted.
10
Modified: Table 12.
21/22
KFxxB
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