LTC1429CS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1429CS Datasheet PDF : 12 Pages
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LTC1429
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (Note 2) ............................................ 9V
Output Voltage .............................................0.3V to – 9V
Total Voltage, VCC to VOUT (Note 2) ......................... 12V
Input Voltage (SYNC/SD Pin) ...... – 0.3V to (VCC + 0.3V)
Input Voltage (REG Pin) ............................– 0.3V to 12V
Input Voltage (ADJ, RO-1, RADJ)
.....................................(VOUT – 0.3V) to (VCC + 0.3V)
Output Short Circuit Duration .......................... Indefinite
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 INFORMATION
TOP VIEW
VCC 1
C1+ 2
C1– 3
GND 4
8 SYNC/SD
7 REG
6 OUT
5 COMP
S8 PACKAGE
8-LEAD PLASTIC SO
ORDER PART
NUMBER
LTC1429CS8-4*
S8 PART MARKING
14294
TJMAX = 150°C, θJA = 150°C/ W
TOP VIEW
NC 1
C1+ 2
C1– 3
C2+ 4
C2– 5
GND 6
R0 7
14 VCC
13 SYNC/SD
12 REG
11 OUT
10 ADJ
9 RADJ
8 R1
S PACKAGE
14-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 110°C/ W
Consult factory for Industrial and Military grade parts. *Contact factory for other output voltages or 8-pin adjustable parts.
ORDER PART
NUMBER
LTC1429CS
ELECTRICAL CHARACTERISTICS
VCC = 3V to 6.5V. C1 = C2 = 0.1µF (Note 4), COUT = 3.3µF, FSYNC = 700kHz with 50% duty cycle square wave, unless otherwise noted.
SYMBOL
VREF
IS
FSYNC
PEFF
VOL
IREG
IADJ
VIH
VIL
IIN
TON
PARAMETER
Reference Voltage
Supply Current
Synchronous Clock Frequency (Note 8)
Power Efficiency
REG Output Low Voltage
REG Sink Current
Adjust Pin Current
SYNC/SD Input High Voltage
SYNC/SD Input Low Voltage
SYNC/SD Input Current
Turn On Time
CONDITIONS
VCC = 3.3V
VCC = 5V
VSYNC/SD = VCC or GND
VCC ≤ 5V
VCC = 6.5V
IREG = 1mA
VREG = 0.8V, VCC = 3.3V
VREG = 0.8V, VCC = 5V
VADJ = 1.24V (Note 5)
VCC = 5V
VCC = 5V
VSYNC/SD = VCC or GND
IOUT = 10mA
LTC1429CS8/LTC1429CS
MIN
TYP
MAX
q 1.20
1.24
1.28
q
600
1500
q
600
1500
q
0.2
5
60
700
2000
100
700
2000
65
q
0.1
0.8
q5
8
q8
15
q
0.01
1
q 2.0
q
0.8
q
±1
200
UNITS
V
µA
µA
µA
kHz
kHz
%
V
mA
mA
µA
V
V
µA
µs
2
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