LT1432-3.3 데이터 시트보기 (PDF) - Linear Technology
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LT1432-3.3 Datasheet PDF : 8 Pages
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LT1432-3.3
ABSOLUTE AXI U RATI GS
VVI+NPPinin.........................................................................................................................................
30V
40V
VC ........................................................................... 35V
VLIM and VOUT Pins ................................................... 7V
Diode Pin Voltage ................................................... 30V
Mode Pin Current (Note 2) ..................................... 1mA
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
VLIM 1
VOUT 2
VIN 3
V+ 4
TOP VIEW
8 MODE
7 GND
6 VC
5 DIODE
ORDER PART
NUMBER
LT1432CN8-3.3
LT1432CS8-3.3
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 100°C, θJA = 150°C/W (N8)
TJMAX = 100°C, θJA = 170°C/W (S8)
Consult factory for Military and Industrial grade parts.
ELECTRICAL CHARACTERISTICS
VC = 4V, VIN = 4V, V+ = 8V, VDIODE = Open, VLIM = VOUT, VMODE = 0V, TJ = 25°C
Device is in standard test loop unless otherwise noted.
PARAMETER
Regulated Output Voltage
Output Voltage Line Regulation
Input Supply Current (Note 1)
Quiescent Output Load Current
Mode Pin Current
Mode Pin Threshold Voltage
(Normal to Burst)
VC Pin Saturation Voltage
VC Pin Maximum Sink Current
VC Pin Source Current
Current Limit Sense Voltage (Note 3)
VLIM Pin Current
Supply Current in Shutdown
Burst Mode Operation Output Ripple
Burst Mode Operation Average Output Voltage
Clamp Diode Forward Voltage
Start-up Drive Current
Restart Time Delay
Transconductance, Output to VC Pin
CONDITIONS
VC Current = 220µA
VIN = 4V to 30V
VIN = 4V to 30V, V+ = VIN + 5V, VC = VIN + 1V
VMODE = 0V (Current Is Out of Pin)
VMODE = 3.3V (Shutdown)
IMODE = 10µA (Out of Pin)
VOUT = 3.6V (Forced)
VOUT = 3.6V (Forced)
VOUT = 3.0V (Forced)
Device in Current Limit Loop
Device in Current Limit Loop
(Current Is Out of Pin)
VMODE > 3V, VIN < 30V, VC and V+ = 0V
Device in Burst Test Circuit
Device in Burst Test Circuit
IF = 1mA, All Other Pins Open
VVO+U=T
= 1.5V (Forced), VIN
VIN – 1V, VC = VIN –
= 4V
1.5V
to
26V,
(Note 4)
IC = 150µA to 250µA
MIN
q 3.24
q
q
q
q
q 0.6
q
q 0.45
q 35
56
q 30
q 3.15
q
q 30
0.7
q 2700
TYP MAX UNITS
3.30 3.36
V
5
20
mV
0.3 0.5
mA
0.9 1.2
mA
30
50
µA
15
30
µA
0.9 1.5
V
0.25 0.45
V
0.8 1.5
mA
60
100
µA
60
64
mV
45
70
µA
15
60
µA
100
mVp-p
3.30 3.45
V
0.5 0.65
V
45
mA
1.2
10
ms
3600 5000 µmho
2
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