參數(shù)資料
型號(hào)： Si9177BM-TI
廠商： Vishay Intertechnology,Inc.
英文描述： 200-mA PSM Step Down Converter with Bypass Capability
中文描述： 200毫安掩模降壓轉(zhuǎn)換器與繞道能力
文件頁(yè)數(shù)： 2/9頁(yè)
文件大?。?/td> 104K
代理商： SI9177BM-TI
Si9177
Vishay Siliconix
New Product
www.vishay.com
2
Document Number: 70312
S-03663—Rev. B, 07-Apr-03
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 C)
V
IN
BP/PSM, ENABLE, F
B,
L
X
Storage Temperature
Operating Junction Temperature
Power Dissipation (Package)
a.
MLP33-10
b.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MSOP-10
c
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-0.3 V to V
IN
+ 0.3 V
-55 to 150 C
150 C
481 mW
915 mW
Thermal Impedance (
MLP33-10
MSOP-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes
a.
Device mounted with all leads soldered or welded to PC board.
b.
Derate 7.4 mW/ C above 25 C.
c.
Derate 14 mW/ C above 25 C.
JA
)
135 C/W
71 C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
V
IN
C
IN
C
OUT
2.7 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 F
10 F
Inductor
C
REF
Operating Temperature Range
1.5 H
Open
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
-25 to 85
C
SPECIFICATIONS
Test Conditions Unless Specified
40 C to 85 C V
-40 C to 85 C, V
= V
, C
IN
= 10 F
C
OUT
= 4.7 F, L = 2.2 H, 2.6 V
R
1
= 11.3 k , R
2
= 20 k
Limits
Parameter
Symbol
V
IN
5.5 V
Min
a
Typ
b
Max
a
Unit
Converter Operation
Input Voltage
Maximum Bypass Mode Current
Maximum PSM Mode Current
MOSFET On-resistance
Power Supply Rejection
V
IN
2.7
800
200
6
V
I
OUT
mA
r
DS(on)
PSRR
V
IN
3.3 V
150
60
1.215
1.215
300
m
dB
Feedback Voltage
V
FB
I
REF
= 0
1.175
1.195
1.255
1.235
V
I
REF
= 0, TA = 25 C
Start-Up
Start-Up Delay Time
Soft Start Time
ENABLE, BP/PSM
Logic High
Logic Low
t
DELAY
t
ss
C
REF
= 0.1 F, See Figure 1
See Figure 1
5
ms
100
s
V
IH
V
IL
I
IH
I
IL
1.5
V
0.4
Input Current
ENABLE, BP/PSM = V
IN
ENABLE, BP/PSM = GND
1
1
A
Protection
Under Voltage Lockout
Under Voltage Lockout Hysteresis
Thermal Shutdown
Thermal Shutdown Hysteresis
Supply Current
BP Mode
PSM Mode
Shutdown
V
UVLO
V
HUVLO
T
SD
T
HSD
2.2
2.35
0.1
165
25
2.5
V
Temperature rising
V
IN
= 3.3 V
C
= 3 3 V
V
IN
= 3.3 V
75
190
110
250
1
I
IN
A
V
IN
= 3.3 V, ENABLE = 0 V
Notes
a.
b.
c.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing.
Guaranteed by design and characterization, not subject to production testing.
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