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LH1605 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LH1605
Description  5 Amp, High Efficiency Switching Regulator
PDF  4 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LH1605 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Input Voltage (VIN)
35V max
Output Current (IO)6A
Operating Temperature (TJ)
150 C
Internal Power Dissipation (PD) (Note 1)
20W
Operating Temperature (TA)
LH1605C
b
25 Cto a85 C
LH1605
b
55 Cto a125 C
Storage Temperature Range (TSTG)
b
65 Cto a150 C
Duty Cycle (DC)
20% to 80%
Steering Diode Reverse Voltage
(VR)(V8–7)
60V
Steering Diode Forward Current
(ID)(I7–8)6A
Electrical Characteristics TC e 25 C VIN e 15V VOUT e 10V unless otherwise specified
Symbol
Characteristics
Conditions
LH1605
LH1605C
Units
Min
Typ
Max
Min
Typ
Max
VOUT
Output Voltage Range
VIN t VO a5V
30
30
30
30
IO e 2A
(Note 2)
VS
Switch Saturation Voltage
IC e 50A
16
20
16
20
IC e 20A
10
12
10
12
VF
Steering Diode On Voltage
ID e 50A
12
28
12
28
V
ID e 20A
10
20
10
20
VIN
Supply Voltage Range
10
35
10
35
IR
Steering Diode Reverse Current
VR e 25V
01
50
01
50
m
A
IQ
Quiescent Current
IOUT e 02A
20
20
mA
V2
Voltage on Pin 2
25
25
V
D
V2 DTV2 Temperature Coeff
100
100
ppm C
V4
Voltage SwingPin 4
30
30
V
I4
Charging CurrentPin 4
70
70
m
A
RA
Resistance Pin 3 to GND
20
20
kX
D
RA DT
Resistance Temp Coeff
75
75
ppm C
tr
Voltage Rise Time
IOUT e 20A
350
350
IOUT e 50A
500
500
ns
tf
Voltage Fall Time
IOUT e 20A
300
300
IOUT e 50A
400
400
ts
Storage Time
IOUT e 50A
15
15
m
s
td
Delay Time
100
100
ns
PD
Power Dissipation
VOUT e 10V
16
16
W
h
Efficiency
IOUT e 50A
75
75
%
i
JC
Thermal Resistance (Note 1)
50
50
CW
Note 1 iJA is typically 30 CW for natural convection cooling
Note 2
VOUT refers to the output voltage range of switching supply after the output LC filter as shown in the Typical Application circuit
2



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