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参数资料
| 型号： | CMD4D06 |
| 厂商： | Linear Integrated Systems |
| 英文描述： | Dual Micropower DC/DC Converters with Schottky Diodes |
| 中文描述： | 双微功率DC / DC转换的肖特基二极管 |
| 文件页数： | 3/8页 |
| 文件大小： | 193K |
| 代理商： | CMD4D06 |
3
LT3463/LT3463A
3463f
TYPICAL PERFOR U
PU
V
OUT1
(Pin 1):
Output Voltage Switcher 1. This is the
cathode of an internal Schottky diode whose anode is
connected to the SW1 pin.
SW1 (Pin 2):
Switch Pin for Switcher 1. This is the
collector of the internal NPN switch. Minimize the metal
trace area connected to this pin to minimize EMI.
V
IN
(Pin 3):
Input Supply Pin. Bypass this pin with a
capacitor as close to the device as possible.
SW2 (Pin 4):
Switch Pin for Switcher 2. This is the
collector of the internal NPN switch. Minimize the metal
trace area connected to this pin to minimize EMI.
D2 (Pin 5):
Diode for Switcher 2. This is the anode of an
internal Schottky diode whose cathode connected to the
GND pin.
FB2 (Pin 6):
Feedback Pin for Switcher 2. Set the output
voltage by selecting values for R3 and R4.
V
REF
(Pin 7):
Voltage Reference Pin (1.25V). This pin is
used along with FB2 to set the negative output voltage for
Switcher 2.
SHDN2 (Pin 8):
Shutdown Pin for Switcher 2. Pull this pin
above 1.5V to enable Switcher 2. Pull below 0.3V to turn
it off. Do not leave this pin floating.
V
CESAT
and V
DIODE
Voltage
V
REF
and V
FB1
Voltage
V
FB2
Voltage
Switch Off Time
Switch Current Limit
Quiescent Current
V
C
D
900
800
700
600
500
400
300
200
100
0
3463 G01
TEMPERATURE (
°
C)
–50
100
0
50
–25
25
75
125
I
DIODE
= 150mA
I
SWITCH
= 150mA
FOR BOTH SWITCHERS
V
R
F
1.27
1.26
1.25
1.24
1.23
1.22
3463 G02
TEMPERATURE (
°
C)
–50
100
0
50
–25
25
75
125
V
REF
V
FB1
V
F
10
8
6
4
2
0
3463 G03
TEMPERATURE (
°
C)
–50
25
75
–25
0
50
100
125
TEMPERATURE (
°
C)
–50
S
100
3463 G04
0
50
400
350
300
250
200
150
100
50
0
–25
25
75
125
TEMPERATURE (
°
C)
–50
S
100
3463 G05
0
50
450
400
350
300
250
200
150
100
50
0
–25
25
75
125
LT3463 SW1, SW2
LT3463A SW1
LT3463A SW2
TEMPERATURE (
°
C)
–50
Q
μ
A
60
50
40
30
20
10
0
25
75
3463 G06
–25
0
50
100
125
NOT SWITCHING
V
FB1
= 1.3V
V
FB2
= –0.1V
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