LT1766IGN#PBF Linear Technology, LT1766IGN#PBF Datasheet - Page 6
![IC SW REG STP-DWN 200KHZ 16-SSOP](/photos/6/59/65965/161-16-ssop_sml.jpg)
LT1766IGN#PBF
Manufacturer Part Number
LT1766IGN#PBF
Description
IC SW REG STP-DWN 200KHZ 16-SSOP
Manufacturer
Linear Technology
Type
Step-Down (Buck)r
Datasheet
1.LT1766EGNPBF.pdf
(30 pages)
Specifications of LT1766IGN#PBF
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.2 ~ 54 V
Current - Output
1.5A
Frequency - Switching
200kHz
Voltage - Input
5.5 ~ 60 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SSOP
Primary Input Voltage
60V
No. Of Outputs
1
Output Voltage
15V
Output Current
1.5A
No. Of Pins
16
Operating Temperature Range
-40°C To +125°C
Msl
MSL 1 - Unlimited
Rohs Compliant
Yes
Dc To Dc Converter Type
Step Down
Pin Count
16
Input Voltage
60V
Switching Freq
216KHz
Package Type
SSOP N
Output Type
Adjustable
Switching Regulator
Yes
Mounting
Surface Mount
Input Voltage (min)
5.5V
Operating Temperature Classification
Automotive
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
LT1766/LT1766-5
TYPICAL PERFORMANCE CHARACTERISTICS
6
2500
2000
1500
1000
2.5
2.0
1.5
1.0
500
2.4
2.0
1.6
1.2
0.8
0.4
0
0
–50
–50
0
Error Amplifi er Transconductance
Switch Peak Current Limit
T
Lockout and Shutdown
Thresholds
A
= 25°C
–25
–25
20
JUNCTION TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
GUARANTEED MINIMUM
0
0
DUTY CYCLE (%)
25
25
40
TYPICAL
LOCKOUT
START-UP
SHUTDOWN
50
50
60
75
75
100
100
80
125
125
1766 G01
1766 G07
1766 G04
100
150
150
3000
2500
2000
1500
1000
1.234
1.229
1.214
1.204
1.224
1.219
1.209
500
100
–50
Error Amplifi er Transconductance
FB Pin Voltage and Current
T
40
35
30
25
20
15
10
ERROR AMPLIFIER EQUIVALENT CIRCUIT
A
V
R
5
0
FB 2 • 10
= 25°C
LOAD
0
–25
Shutdown Supply Current
(
V
T
A
SHDN
1k
JUNCTION TEMPERATURE (°C)
= 50Ω
= 25°C
–3
10
0
GAIN
= 0V
)
FREQUENCY (Hz)
25
PHASE
10k
INPUT VOLTAGE (V)
20
CURRENT
50
VOLTAGE
R
200k
OUT
100k
30
75
100 125 150
40
1M
C
12pF
OUT
V
1766 G08
C
1766 G02
50
10M
1766 G05
200
150
100
50
0
–50
0.5
2.0
1.5
1.0
0
60
250
200
150
100
300
250
200
150
100
600
500
400
200
100
300
12
50
6
0
0
–50
0
0
0
Shutdown Supply Current
Frequency Foldback
SHDN Pin Bias Current
T
T
CURRENT REQUIRED TO FORCE SHUTDOWN
(FLOWS OUT OF PIN). AFTER SHUTDOWN,
CURRENT DROPS TO A FEW μA
A
A
= 25°C
= 25°C
–25
AT 2.38V STANDBY THRESHOLD
(CURRENT FLOWS OUT OF PIN)
0.1
JUNCTION TEMPERATURE (°C)
SHUTDOWN VOLTAGE (V)
0
V
IN
0.5
= 60V
25
0.2
V
FB
50
(V)
V
0.3
IN
75
= 15V
1.0
FREQUENCY
SWITCHING
100
CURRENT
0.4
FB PIN
125
1766 G03
1766 G06
1766 G09
1766fc
150
0.5
1.5