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LTC1159 Datasheet(PDF) 2 Page - Linear Technology

Part No. LTC1159
Description  High Efficiency Synchronous Step-Down Switching Regulators
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC1159 Datasheet(HTML) 2 Page - Linear Technology

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LTC1159/LTC1159-3.3/LTC1159-5
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VFB
Feedback Voltage (LTC1159 Only)
q
1.21
1.25
1.29
V
IFB
Feedback Current (LTC1159 Only)
q
0.2
µA
VOUT
Regulated Output Voltage
VIN = 9V
LTC1159-3.3
ILOAD = 700mA
q
3.23
3.33
3.43
V
LTC1159-5
ILOAD = 700mA
q
4.90
5.05
5.20
V
∆VOUT
Output Voltage Line Regulation
VIN = 9V to 40V
– 40
0
40
mV
Output Voltage Load Regulation
LTC1159-3.3
5mA < ILOAD < 2A
q
40
65
mV
LTC1159-5
5mA < ILOAD < 2A
q
60
100
mV
Burst Mode Output Ripple
ILOAD = 0A
50
mVP-P
IIN
VIN Pin Current (Note 3)
Normal Mode
VIN = 12V, EXTVCC = 5V
200
µA
VIN = 40V, EXTVCC = 5V
300
µA
Shutdown
VIN = 12V, VSHDN2 = 2V
15
µA
VIN = 40V, VSHDN2 = 2V
25
µA
IEXTVCC
EXTVCC Pin Current (Note 3)
EXTVCC = 5V, Sleep Mode
250
µA
VCC
Internal Regulator Voltage
VIN = 12V to 40V, EXTVCC = 0V, ICC = 10mA
q
4.25
4.5
4.75
V
VIN – VCC
VCC Dropout Voltage
VIN = 4V, EXTVCC = Open, ICC = 10mA
300
400
mV
A
G
A
U
A
R
BSOLUTEXI
TI
S
Input Supply Voltage (Pin 2)...................... – 15V to 60V
VCC Output Current (Pin 3) .................................. 50mA
Continuous Pin Currents (Any Pin) ...................... 50mA
Sense Voltages ......................................... – 0.3V to 13V
Shutdown Voltages ................................................... 7V
EXTVCC Input Voltage ............................................. 15V
Operating Temperature Range .................... 0
°C to 70°C
Extended Commercial
Temperature Range ............................... – 40
°C to 85°C
Junction Temperature (Note 1) ............................ 125
°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300
°C
PACKAGE/ORDER I FOR ATIO
LTC1159CG
LTC1159CG-3.3
LTC1159CG-5
ORDER PART
NUMBER
TJMAX = 125°C, θJA = 135°C/ W
LTC1159CN
LTC1159CN-3.3
LTC1159CN-5
LTC1159CS
LTC1159CS-3.3
LTC1159CS-5
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
9
10
TOP VIEW
G PACKAGE
20-LEAD PLASTIC SSOP
20
19
18
17
16
15
14
13
12
11
P-GATE
VIN
VCC
P-DRIVE
P-DRIVE
VCC
VCC
CT
ITH
SENSE
CAP
SHDN2
EXTVCC
P-GND
N-GATE
P-GND
S-GND
SHDN1
VFB
SENSE+
Consult factory for Industrial and Military grade parts.
ELECTRICAL C
C
HARA TERISTICS T
A = 25°C, VIN = 12V, VSHDN1 = 0V (Note 2), unless otherwise noted.
1
2
3
4
5
6
7
8
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
N PACKAGE
16-LEAD PDIP
16
15
14
13
12
11
10
9
P-GATE
VIN
VCC
P-DRIVE
VCC
CT
ITH
SENSE
CAP
SHDN2
EXTVCC
N-GATE
P-GND
S-GND
SENSE+
*FIXED OUTPUT VERSIONS
VFB (SHDN1)*
TJMAX = 125°C, θJA = 80°C/ W (N)
TJMAX = 125°C, θJA = 110°C/ W (S)


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