參數(shù)資料
型號: SI9166
廠商: Vishay Intertechnology,Inc.
英文描述: High Frequency Programmable Topology Controller
中文描述: 拓撲高頻可編程控制器
文件頁數(shù): 3/8頁
文件大?。?/td> 217K
代理商: SI9166
Si9166
New Product
Vishay Siliconix
FaxBack 408-970-5600, request 70847
www.siliconix.com
S-60752—Rev. B, 05-Apr-99
3
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Oscillator
Maximum Frequency
F
OSC
2
MHz
Accuracy
Nominal 1.60 MHz, R
OSC
= 30 k
-20
20
%
Maximum Duty Cycle—
Buck
D
MAX
F
sw
= 2 MHz (non LDO mode)
75
85
Maximum Duty Cycle—
Boost
F
sw
= 2 MHz
52
65
SYNC Range
F
SYNC
/F
OSC
1.2
1.5
SYNC Low Pulse Width
50
ns
SYNC High Pulse Width
50
SYNC t
r
, t
f
Error Amplifier
50
Input Bias Current
I
BIAS
A
VOL
V
FB
= 1.4 V
-1
1
μA
Open Loop Voltage Gain
50
60
dB
FB Threshold
V
FB
T
A
= 25
°
C
1.270
1.30
1.330
V
1.258
1.30
1.342
Unity Gain BW
BW
2
MHz
Output Current
I
EA
Source (V
FB
= 1.05 V), V
COMP
=
0.75 V
-3
-1
mA
Sink (V
FB
= 1.55 V), V
COMP
= 0.75 V
1
3
Power Supply Rejection
Output Drive (DH and DL)
PSRR
60
dB
Output High Voltage
V
OH
V
OL
V
S
= 3.3 V, I
OUT
= -20 mA
V
S
= 3.3 V, I
OUT
= 20 mA
3.18
3.24
V
Output Low Voltage
0.06
0.12
Peak Output Source
I
SOURCE
I
SINK
t
BBM
V
S
= 3.3 V, DH = DL = V
S
/2
-750
-500
mA
Peak Output Sink
500
750
Break-Before-Make
Supply
V
S
= V
DD
= 3.3 V
30
ns
Normal Mode
I
DD
V
DD
= 3.3 V, F
OSC
= 2 MHz
V
DD
= 3.3 V
V
DD
= 3.3 V, SD = 0 V
500
750
μA
PSM Mode
180
250
Shutdown Mode
1
SPECIFICATIONS
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
2.7 V
V
DD
, V
S
6 V
Limits
-25
°
C to 85
°
C
Unit
Min
a
Typ
b
Max
a
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