參數(shù)資料
型號: LTC1553
廠商: Linear Technology Corporation
英文描述: 5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor(用于奔騰II處理器的5位可編程同步開關(guān)穩(wěn)壓器)
中文描述: 5位可編程同步開關(guān)穩(wěn)壓器控制器的奔騰II處理器(用于奔騰2處理器的5位可編程同步開關(guān)穩(wěn)壓器)
文件頁數(shù): 2/24頁
文件大?。?/td> 335K
代理商: LTC1553
2
LTC1553
ABSOLUTE
AXI
U
RATIU
W
W
W
ORDER PART
NUMBER
(Note 1)
Supply Voltage
V
CC
........................................................................ 9V
PV
CC
................................................................... 20V
Input Voltage
I
FB
(Note 2)............................................ PV
CC
+ 0.3V
I
MAX
...................................................... –0.3V to 13V
All Other Inputs ......................... –0.3V to V
CC
+ 0.3V
Digital Output Voltage............................... –0.3V to 13V
I
FB
Input Current (Notes 2, 3) .......................... –100mA
Operating Temperature Range.....................0
°
C to 70
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec.).................300
°
C
PACKAGE/ORDER I
FOR
ATIO
W
U
U
V
CC
= 5V, PV
CC
= 12V, T
A
= 25
°
C, unless otherwise noted. (Note 3)
ELECTRICAL CHARACTERISTICS
Consult factory for Industrial and Military grade parts.
SYMBOL
V
CC
PV
CC
V
FB
V
OUT
PARAMETER
Supply Voltage
Supply Voltage for G1, G2
Internal Feedback Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
Output Load Regulation
Output Line Regulation
Positive Power Good Trip Point
Negative Power Good Trip Point
FAULT Trip Point
Operating Supply Current
Shutdown Supply Current
Supply Current
CONDITIONS
MIN
4.5
TYP
MAX
8
18
UNITS
G
V
V
V
G
(Note 4)
With Respect to Rated Output Voltage (Figure 2)
1.265
– 27 (–1.5%)
– 42 (–1.5%)
– 52 (–1.5%)
– 36 (–2%)
– 56 (–2%)
– 70 (–2%)
27 (+1.5%)
42 (+1.5%)
52 (+1.5%)
36 (+2%)
56 (+2%)
70 (+2%)
mV
mV
mV
mV
mV
mV
mV
mV
%
%
%
μ
A
μ
A
mA
μ
A
kHz
G
G
G
V
OUT
I
OUT
= 0 to 14A (Note 4) (Figure 2)
V
IN
= 4.75V to 5.25V, I
OUT
= 0 (Note 4)(Figure 2)
% Above Output Voltage (Figure 2)
% Below Output Voltage (Figure 2)
% Above Output Voltage (Figure 2)
OUTEN = V
CC
= 5V (Note 5) (Figure 3)
OUTEN = 0, VID0 to VID4 Floating (Figure 3)
PV
CC
= 12V, OUTEN = V
CC
(Note 6) (Figure 3)
PV
CC
= 12V, OUTEN = 0, VID0 to VID4 Floating
(Figure 4)
(Note 4)
(Note 4)
(Note 7)
(Note 7)
COMP = Open (Note 4)
–5
±
1
5
–5
15
800
130
15
1
300
1.8
2.8
53
1.6
400
V
PWRGD
G
G
7
–7
12
V
FAULT
I
CC
G
20
1200
250
G
G
I
PVCC
f
OSC
V
SAWL
V
SAWH
G
ERR
g
mERR
BW
ERR
Internal Oscillator Frequency
V
COMP
at Minimum Duty Cycle
V
COMP
at Maximum Duty Cycle
Error Amplifier Open-Loop DC Gain
Error Amplifier Transconductance
Error Amplifier –3dB Bandwidth
G
250
350
V
V
G
40
0.9
dB
G
2.3
millimho
kHz
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W (G)
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W (SW)
1
2
3
4
5
6
7
8
9
10
TOP VIEW
G PACKAGE
20-LEAD PLASTIC SSOP
SW
20-LEAD PLASTIC SO
20
19
18
17
16
15
14
13
12
11
G2
PV
CC
GND
SGND
V
CC
SENSE
I
MAX
I
FB
SS
COMP
G1
OUTEN
VID0
VID1
VID2
VID3
VID4
PWRGD
FAULT
OT
LTC1553CG
LTC1553CSW
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