LT1738EG#PBF Linear Technology, LT1738EG#PBF Datasheet - Page 4

• Manufacturer Part Number: LT1738EG#PBF
• Description: IC DC/DC CONTRLR LOW NOIS 20SSOP
• Manufacturer: Linear Technology
• Type: Step-Up (Boost), Cuk, Flybackr

Specifications of LT1738EG#PBF

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5 ~ 100 V
• Frequency - Switching: 20kHz ~ 250kHz
• Voltage - Input: 2.55 ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -

LT1738
4
TYPICAL PERFOR A CE CHARACTERISTICS
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50 –25
–50 –25
Feedback Overvoltage Shutdown
vs Temperature
V
Voltage vs Temperature
C
Pin Threshold and Clamp
1.260
1.258
1.256
1.254
1.252
1.250
1.248
1.246
1.244
1.242
1.240
CLAMP
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
–50 –25
25
25
Feedback Voltage and Input
Current vs Temperature
50
50
THRESHOLD
75
75
0
TEMPERATURE ( C)
100 125 150
100 125 150
25
W
50
1738 G03
1738 G06
U
75
100 125 150
2000
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
1738 G01
240
220
200
180
160
140
120
100
80
–50 –25
–50 –25
Error Amp Transconductance vs
Temperature
CS Pin Trip Voltage and CS Fault
Voltage vs Temperature
750
700
650
600
550
500
450
400
350
300
250
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
FAULT
TRIP
50
50
75
75
100 125 150
100 125 150
2.480
2.485
2.490
2.495
2.500
2.505
2.510
2.515
2.520
1738 G04
1738 G07
–50 –25
Negative Feedback Voltage and
Input Current vs Temperature
0
TEMPERATURE ( C)
–100
–200
–300
–400
–500
1.50
1.45
1.40
1.35
1.30
1.25
500
400
300
200
100
25
0
–400 –300 –200 –100
–50 –25
Error Amp Output Current vs
Feedback Pin Voltage from Nominal
FEEDBACK PIN VOLTAGE FROM NOMINAL (mV)
SHDN Pin On and Off Thresholds
vs Temperature
50
75
0
100 125 150
TEMPERATURE ( C)
25
1738 G02
ON
OFF
50
0
–40 C
100 200 300 400
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
75
125 C
100 125 150
25 C
1738 G05
1738 G08
1738fa