LT3574IMS#PBF Linear Technology, LT3574IMS#PBF Datasheet - Page 18

• Manufacturer Part Number: LT3574IMS#PBF
• Description: IC PWM FLYBCK ISO CM 16MSOP
• Manufacturer: Linear Technology
• Type: Flyback, Isolated, PWM - Current Moder

Specifications of LT3574IMS#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 60V
• Current - Output: 650mA
• Frequency - Switching: 40kHz ~ 1MHz
• Voltage - Input: 3 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: 16-MSOP
• Voltage - Supply: 3 V ~ 40 V
• Frequency-max: 1MHz
• Duty Cycle: 52%
• Pwm Type: Current Mode
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

typical applications
LT3574

V
V
5V
5V
IN
IN
R6
28.7k
R6
59k
C1
10
C1
10
µ
µ
F
F
R5
10k
R5
10k
R1
200k
R2
90.9k
R1
200k
R2
90.9k
C2
10nF
C2
10nF
SHDN/UVLO
R
TC
SS
ILIM
Low Input Voltage 5V Isolated Flyback Converter
SHDN/UVLO
TC
R
SS
VC
ILIM
VC
R7
56.2k
R7
59k
C3
0.01µF
C3
1500pF
3574 TA03
LT3574
±12V Isolated Flyback Converter
GND
LT3574
V
GND
IN
V
IN
TEST
TEST
R
BIAS
R
V
R
REF
SW
BIAS
FB
IN
R
REF
V
SW
FB
IN
T1: COILTRONICS VPH1-0076-R
D1, D2: B240A
D3: PMEG6010
C5, C6: MURATA, GRM32ER71A226K
T1: PULSE PA2626NL OR WÜRTH ELEKTRONIK 750370040
D1: B340A
D2: PMEG6010
C5: MURATA, GRM32ER71A226K
C6
0.22
118k
R4
6.04k
C6
0.22
R3
80.6k
R4
6.04k
R3
µ
F
µ
F
R8
2k
R8
2k
D3
D2
43.6
30
3574 TA02
µ
T1
µ
T1
H
H
•
2:1:1
3:1
•
3.3
10.9
10.9
D1
D1
D2
µ
H
µ
µ
H
H
C5
22
C5
22
C6
22
µ
µ
µ
F
F
F
V
12V
40mA
V
V
V
–12V
40mA
V
5V
175mA
V
OUT1
OUT 1
OUT2
OUT 2
OUT
OUT
+
–
+
–
+
–
3574f