LT1073CS8 Linear Technology, LT1073CS8 Datasheet - Page 2

• Manufacturer Part Number: LT1073CS8
• Description: IC DC/DC CONVERTER ADJSTBL 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Step-Up (Boost), Invertingr

Specifications of LT1073CS8

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adjustable
• Current - Output: 400mA
• Frequency - Switching: 19kHz
• Voltage - Input: 1 ~ 30 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Power - Output: 500mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ABSOLUTE AXI U RATI GS
LT1073
(Note 1)
Supply Voltage, Step-Up Mode ................................ 15V
Supply Voltage, Step-Down Mode ........................... 36V
SW1 Pin Voltage ...................................................... 50V
SW2 Pin Voltage ........................................... –0.4 to V
Feedback Pin Voltage (LT1073) ................................. 5V
Switch Current ........................................................ 1.5A
Maximum Power Dissipation ............................. 500mW
Operating Temperature Range ..................... 0 C to 70 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
SYMBOL
I
I
V
V
f
DC
t
I
I
V
V
A
2
ELECTRICAL CHARACTERISTICS
Q
Q
OSC
ON
FB
SET
IN
OUT
AO
CESAT
V
PARAMETER
Quiescent Current
Quiescent Current, Step-Up
Mode Configuration
Input Voltage
Comparator Trip Point Voltage
Output Sense Voltage
Comparator Hysteresis
Output Hysteresis
Oscillator Frequency
Duty Cycle
Switch ON Time
Feedback Pin Bias Current
Set Pin Bias Current
AO Output Low
Reference Line Regulation
Switch Saturation Voltage
Set-Up Mode
A2 Error Amp Gain
W
W W
U
A
= 25 C. V
CONDITIONS
Switch Off
No Load
Step-Up Mode
Step-Down Mode
LT1073 (Note 2)
LT1073-5 (Note 3)
LT1073-12 (Note 3)
LT1073
LT1073-5
LT1073-12
Full Load (V
LT1073, V
V
I
1V V
1.5V V
V
V
V
R
AO
SET
IN
IN
IN
L
= 100k (Note 4)
The
= –100 A
= 1.5V, I
= 1.5V, I
= 5V, I
= V
IN
IN
REF
IN
IN
FB
SW
denotes the specifications which apply over the full operating
1.5V
= 1.5V unless otherwise specified.
FB
SW
SW
= 0V
12V
= 1A
= V
= 500mA
= 400mA
PACKAGE/ORDER I FOR ATIO
Consult factory for parts specified with wider operating temperature ranges.
REF
N8 PACKAGE
8-LEAD PDIP
SW1
SW2
I
LIM
V
)
LT1073-5
LT1073-12
IN
T
T
JMAX
JMAX
1
2
3
4
*FIXED VERSIONS
= 125 C,
= 125 C,
TOP VIEW
8-LEAD PLASTIC SO
JA
JA
S8 PACKAGE
= 100 C/W (N8)
= 120 C/W (S8)
8
7
6
5
FB (SENSE)*
SET
A0
GND
MIN
1.15
4.75
11.4
202
400
1.0
15
65
30
U
S8 PART MARKING
1000
0.15
0.35
0.05
TYP
135
250
212
125
300
300
400
700
95
12
19
72
38
10
60
5
5
LT1073CN8
LT1073CN8-5
LT1073CN8-12
LT1073CS8
LT1073CS8-5
LT1073CS8-12
ORDER PART
NUMBER
W
1073
10735
107312
MAX
1000
1500
12.6
12.6
5.25
12.6
130
222
250
600
120
400
600
550
750
0.4
1.0
0.1
30
10
23
80
50
50
UNITS
U
kHz
mV
mV
mV
mV
%V
%V
mV
mV
mV
mV
mV
mV
V/V
nA
nA
%
A
A
A
V
V
V
V
V
V
s