ltc3787gn Linear Technology Corporation, ltc3787gn Datasheet - Page 36

• Manufacturer Part Number: ltc3787gn
• Description: Ltc3787 - Polyphase Synchronous Boost Controller
• Manufacturer: Linear Technology Corporation

LTC3787
Typical applicaTion
relaTeD parTs
PART NUMBER
LTC3788/LTC3788-1
LTC3862/LTC3862-1
LTC3813/LTC3814-5
LTC1871/LTC1871-1/
LTC1871-7
LT3757/LT3758
LTC3789
36
+90°
PHASMD
PHASMD
CLKOUT
CLKOUT
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
REFER TO FIGURE 15 FOR APPLICATION CIRCUITS
LTC3787
LTC3787
90,270
DESCRIPTION
2-Phase Dual Output Synchronous Step-Up Controllers
Multiphase Current Mode Step-Up DC/DC Controller
100V/60V Maximum V
Step-Up DC/DC Controller
Wide Input Range, No R
Flyback, Boost and SEPIC Controller
Boost, Flyback, SEPIC and Inverting Controller
High Efficiency Synchronous 4-Switch Buck-Boost
DC/DC Controller
BG1
TG1
BG2
TG2
BG1
TG1
BG2
TG2
●
FAX: [phone]
0°
180°
90°
270°
I
I
I
I
1
2
3
4
OUT
BOOST: 24V, 5A
BOOST: 24V, 5A
BOOST: 24V, 5A
BOOST: 24V, 5A
SENSE
●
Current Mode Synchronous
www.linear.com
Low Quiescent Current
I
IN
Figure 16. PolyPhase Application
24V, 20A
C
12V
C
OUT
IN
COMMENTS
4.5V ≤ V
QFN-32 and SSOP-28 Packages
4V ≤ V
SSOP-24, TSSOP-24 and 5mm × 5mm QFN-24 Packages
No R
TSSOP-16 Packages
Adjustable Switching Frequency, 2.5V ≤ V
at Light Load, MSOP-10 Package
V
Frequency, 3mm × 3mm DFN-10 and MSOP-10E Packages
4V ≤ V
QFN-28 and SSOP-28 Packages
IN
I
COUT
Up to 40V/100V, 100kHz to 1MHz Programmable Operation
SENSE
IN
IN
IN
≤ 36V, 5V or 10V Gate Drive, 75kHz to 500kHz
≤ 38V, 0.8V ≤ V
, Large 1Ω Gate Driver, Adjustable Off-Time, SSOP-28 and
≤ 38V, V
I*
COUT
* RIPPLE CURRENT CANCELLATION INCREASES THE RIPPLE
I*
I
IN
FREQUENCY AND REDUCES THE RMS INPUT/OUTPUT RIPPLE
CURRENT, THUS SAVING INPUT/OUTPUT CAPACITORS
I
I
I
1
2
3
4
OUT
Up to 60V, 50kHz to 900kHz, 5mm × 5mm
OUT
≤ 38V, 4mm × 5mm
 LINEAR TECHNOLOGY CORPORA TION 2010
IN
≤ 36V, Burst Mode Operation
LT 1210 REV A • PRINTED IN USA
3787 F16
3787fa