LT3574IMS#PBF Linear Technology, LT3574IMS#PBF Datasheet - Page 24

• 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

relateD parts
LT3574
typical application
PART NUMBER
LT3573
LT3757
LT3758
LT3837
LT3825
LT1725
LT1737
LTC
LTC1871-7
LTC3803/LTC3803-3
LTC3803-5
LTC3873/LTC3873-5
LTC3805/LTC3805-5

®
1871/LTC1871-1
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
10V TO 30V
DESCRIPTION
Isolated Flyback Switching Regulator with 60V
Integrated Switch
Boost, Flyback, SEPIC and Inverting Controller
Boost, Flyback, SEPIC and Inverting Controller
Isolated No-Opto Synchronous Flyback Controller
Isolated No-Opto Synchronous Flyback Controller
Isolated No-Opto Flyback Controller
Isolated No-Opto Flyback Controller
No R
and SEPIC Controllers
200kHz or 300kHz Flyback DC/DC Controllers
No R
SEPIC Controllers
Adjustable Fixed 70kHz to 700kHz Operating
Frequency Flyback Controllers
V
IN
●
SENSE
SENSE
FAX: [phone]
R5
28.7k
™ Low Quiescent Current Flyback, Boost
Constant Frequency Flyback, Boost,
C1
10
µ
F
R6
10k
R1
357k
R2
51.1k
C2
10nF
10V to 30V
●
R
SHDN/UVLO
TC
SS
ILIM
www.linear.com
VC
R7
40.2k
C3
2700pF
IN
LT3574
, +5V/–5V
GND
V
IN
TEST
R
BIAS
OUT
R
REF
SW
FB
C4
4.7µF
Isolated Flyback Converter
COMMENTS
3V ≤ V
MSOP-16E
2.9V ≤ V
Operation Frequency, 3mm × 3mm DFN-10 and MSOP-10E Package
5.5V ≤ V
Operation Frequency, 3mm × 3mm DFN-10 and MSOP-10E Package
Ideal for V
Current Mode Control
V
Current Mode Control
V
Input Voltage
V
Input Voltage
Adjustable Switching Frequency, 2.5V ≤ V
Light Loads
V
Package
V
or 8-Pin ThinSOT Packages
V
MSOP-10E
IN
IN
IN
IN
IN
IN
from 16V to 75V Limited by External Components, Up to 60W,
and V
and V
and V
and V
and V
80.6k
R4
6.04k
R3
IN
C6
0.22
IN
IN
≤ 40V, No Opto-Isolator or “Third Winding” Required, Up to 7W,
OUT
OUT
OUT
OUT
OUT
IN
≤ 40V, Current Mode Control, 100kHz to 1MHz Programmable
≤ 100V, Current Mode Control, 100kHz to 1MHz Programmable
µ
F
from 4.5V to 36V Limited by External Components, Up to 60W,
D3
Limited Only by External Components, Ideal for 48V Nominal
Limited Only by External Components, Ideal for 24V Nominal
Limited Only by External Components, 6-Pin ThinSOT™
Limited Only by External Components, 2mm × 3mm DFN-8
Limited Only by External Components, 3mm × 3mm DFN-10,
L1D
7
µ
R8
2k
H
D4
3574 TA11
63
L1A
µ
H
3:1:1:1
•
*OPTIONAL THIRD
T1
WINDING FOR
>24V OPERATION
D1, D2: B340A
D4: PMEG6010
T1: W
•
•
L1C
7µ
L1B
7µ
H
Ü
H
RTH ELEKTRONIK 750310564
D1
D2
 LINEAR TECHNOLOGY CORPORATION 2010
IN
C5
47
C6
47
≤ 36V, Burst Mode
µ
µ
F
F
V
5V
175mA
COM
V
– 5V
175mA
OUT
OUT
+
–
LT 0110 • PRINTED IN USA
®
Operation at
3574f