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参数资料
| 型号： | LTC3610IWP#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, PQCC64 |
| 封装： | 9 X 9 MM, PLASTIC, QFN-64 |
| 文件页数： | 1/24页 |
| 文件大小： | 388K |
| 代理商： | LTC3610IWP#TR |
LTC3610
3610ff
0.47H
4.7F
10F
×3
VIN
4V TO 24V
VOUT
2.5V
12A
3610 TA01a
604k
0.1F
ION
VIN
SW
BOOST
RUN/SS
ITH
VON
SGND
INTVCC
FCB
PGND
VFB
VRNG
0.22F
100F
×2
31.83k
LTC3610
470pF
EXTVCC
PGOOD
30.1k
9.5k
100pF
LOAD CURRENT (A)
0.01
EFFICIENCY
(%)
POWER
LOSS
(mW)
80
90
3610 TA01b
70
50
60
85
95
75
55
65
0.1
1
10
100
1000
100
1
10
10000
VOUT = 2.5V
POWER LOSS 12V
POWER LOSS 5V
VIN = 12V
VIN = 5V
Features
applications
Description
24V, 12A Monolithic
Synchronous Step-Down
DC/DC Converter
TheLTC3610isahighefficiency,monolithicsynchronous
step-down DC/DC converter that can deliver up to 12A
output current from a 4V to 24V (28V maximum) input
supply. It uses a valley current control architecture to de-
liver very low duty cycle operation at high frequency with
excellent transient response. The operating frequency is
selected by an external resistor and is compensated for
variations in VIN and VOUT.
The LTC3610 can be configured for discontinuous or
forced continuous operation at light load. Forced continu-
ous operation reduces noise and RF interference while
discontinuous mode provides high efficiency by reducing
switching losses at light loads.
Fault protection is provided by internal foldback current
limiting,anoutputovervoltagecomparatorandanoptional
short-circuit shutdown timer. Soft-start capability for sup-
ply sequencing is accomplished using an external timing
capacitor.Theregulatorcurrentlimitisuserprogrammable.
A power good output voltage monitor indicates when
the output is in regulation. The LTC3610 is available in a
compact 9mm
× 9mm QFN package.
■
12AOutputCurrent
■
WideVINRange=4Vto24V
■
InternalN-ChannelMOSFETs
■
TrueCurrentModeControl
■
OptimizedforHighStep-DownRatios
■
tON(MIN)≤100ns
■
ExtremelyFastTransientResponse
■
StablewithCeramicCOUT
■
±1%0.6VVoltageReference
■
Power Good Output Voltage Monitor
■
Adjustable On-Time/Switching Frequency
■
Adjustable Current Limit
■
Programmable Soft-Start
■
Output Overvoltage Protection
■
Optional Short-Circuit Shutdown Timer
■
Low Shutdown IQ: 15A
■
Available in a 9mm
× 9mm 64-Pin QFN Package
■
Point of Load Regulation
■
Distributed Power Systems
HighEfficiencyStep-DownConverter
EfficiencyvsLoadCurrent
typical application
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
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