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SI9145BQ-T1-E3
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
Si9145
Vishay Siliconix
www
.vishay
.com
4
Document Number: 70021
S-40710—Rev
.
K, 19-Apr-04
TYPICAL
CHARACTERISTICS (25
_
C UNLESS NOTED)
Phase (deg)
Gain (dB)
1.485
1.490
1.495
1.500
1.505
1.510
1.515
2345
678
0
5
10
15
20
25
23456
7
0
5
10
15
20
25
0.5
1.0
1.5
2.0
1.485
1.490
1.495
1.500
1.505
1.510
1.515
0
5
10
15
20
25
30
1.485
1.490
1.495
1.500
1.505
1.510
1.515
−
25
0
25
50
75
100
125
2.7, 3.0, 3.6 V
V
REF
vs. Supply V
oltage
V
REF
vs. T
emperature
Supply Current
vs.Supply V
oltage and Output Load
Supply Current
vs. Switching Frequency and Output Load
V
REF
vs. Load Current
V
DD
−
Supply V
oltage (V)
(V)
REF
V
(V)
REF
V
V
REF
−
Sourcing Current (
m
A)
(V)
REF
V
Supply Current (mA)
Supply Current (mA)
V
DD
−
Supply V
oltage
(V)
Switching Frequency (MHz)
V
REF
with 10
m
A Load
t
−
T
emperature (
_
C)
5.0 V
7.0 V
C
L
= 2,200 pF
900 pF
100 pF
10 pF
f = 1 MHz
C
L
= 2,200 pF
900 pF
100 pF
10 pF
V
DD
= 3.6 V
V
DD
= 3.6 V
Error Amplifier Gain and Phase
f
−
Frequency (MHz)
80
0
−
30
−
60
−
90
−
120
−
150
60
40
20
0
−
20
−
40
0.0001
0.001
0.01
0.1
1
10
100
Gain
Phase
Si9145
Vishay Siliconix
Document Number: 70021
S-40710—Rev
.
K, 19-Apr-04
www
.vishay
.com
5
TYPICAL
CHARACTERISTICS (25
_
C UNLESS NOTED)
0.01
0.10
1.00
10.00
1
2
3
4
5
0.0
0.2
0.4
0.6
0.8
1.0
0.90
0.95
1.00
1.05
1.10
1.15
1.20
23456
7
220
230
240
250
260
270
23456
7
0
20
40
60
80
100
1.0
1.1
1.2
1.3
1.4
1.5
1.6
0.9
1.1
1.3
1.5
1.7
1.9
2.5
3.5
4.5
5.5
6.5
7.5
T
A
= 85
_
C
25
_
C
Supply Current
vs. Frequency and Supply V
oltage
Supply Current
vs. Supply V
oltage and T
emperature
Switching Frequency vs. Supply V
oltage
Standby Current
vs. Supply V
oltage and T
emperature
Duty Cycle vs. D
MAX
/SS V
oltage
f
−
Frequency (MHz)
Supply Current (mA)
Normal Current (mA)
V
DD
−
Supply V
oltage (V)
A)
Standby Current (
m
V
DD
−
Supply V
oltage (V)
Duty Cycle (%)
D
MAX
/SS (V)
Switching Frequency (MHz)
V
DD
−
Supply V
oltage (V)
C
L
= 10 pF
C
L
= 10 pF
f = 1 MHz
−
25
_
C
T
A
= 85
_
C
25
_
C
−
25
_
C
2.7 V
3.0 V
3.6 V
5.0 V
V
DD
= 7.0 V
R
OSC
= 6.98 k
W
C
OSC
= 100 pF
Frequency vs. R
OSC
/C
OSC
C
OSC
−
Capacitance (pF)
Switching Frequency (MHz)
4.99 k
W
12.1 k
W
24.9 k
W
49.9 k
W
100 k
W
249 k
W
40
300
100
200
Si9145
Vishay Siliconix
www
.vishay
.com
6
Document Number: 70021
S-40710—Rev
.
K, 19-Apr-04
TYPICAL
CHARACTERISTICS (25
_
C UNLESS NOTED)
1.485
1.490
1.495
1.500
1.505
1.510
1.515
02468
1
0
0
10
20
30
40
50
23456
7
10
20
30
40
50
23456
7
150
170
190
210
230
250
23456
7
0
10
20
30
40
50
23456
7
Output
Rise T
ime
vs. Supply V
oltage and Load
Output Fall Time
vs. Supply V
oltage and Load
Enable Delay to Output
UVLO
Hysteresis vs. Supply
V
oltage
Output Rise T
ime (nS)
V
DD
−
Supply V
oltage (V)
V
DD
−
Supply V
oltage (V)
Fall Time (nS)
Output Delay (nS)
V
DD
−
Supply V
oltage (V)
V
DD
−
Supply V
oltage (V)
UVLO Hysteresis (mV)
C
L
= 2,200 pF
900 pF
100 pF
10 pF
900 pF
100 pF
10 pF
Mode Select = High
Mode Select = Low
C
L
= 2,200 pF
V
DD
= 3.6 V
V
REF
vs. Bypass Capacitor
(V)
REF
V
Capacitance (mF)
P1-P3
P4-P6
P7-P9
P10-P12
P13-P14
SI9145BQ-T1-E3
Mfr. #:
Buy SI9145BQ-T1-E3
Manufacturer:
Vishay / Siliconix
Description:
Switching Controllers Lo V-Hi Freq Swmode Controller
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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TNT
EMS
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