LTC7862
TYPICAL APPLICATION
ꢀ
ꢁꢂꢃꢄ
ꢀꢁ
ꢂꢃꢄ
ꢅꢆꢇꢈꢉꢊꢋ ꢇꢄ ꢌꢍꢁ
ꢎꢇ
6mΩ
ꢀꢁꢂꢃ
ꢀ
ꢁꢂ
ꢃꢀ ꢄꢅ ꢆꢇ0ꢀ
ꢀ
ꢀ
ꢄꢅꢆ
ꢇꢈ
ꢁꢂꢃ
ꢁꢂꢃ
ꢀꢁ
0ꢂꢃꢃꢄꢅ
ꢄꢄꢅꢆ
10Ω
ꢀꢁꢂ
ꢀ
ꢄꢅꢄꢆꢇ
ꢈꢉ
ꢁꢂꢃ
ꢀꢁꢂꢃ
ꢀꢁ
ꢀRꢁ
ꢂꢂ
ꢀꢁ
ꢀꢁꢂꢃꢄ ꢅꢆꢇꢅꢆꢈꢂꢆ ꢉꢊꢋꢌꢍ0ꢆꢌꢎꢆꢊꢎ
ꢀꢉꢂꢁꢄ ꢅꢆꢇꢅꢆꢈꢂꢆ ꢉꢊꢋꢌꢍ0ꢆꢌꢎꢆꢊꢎ
ꢏꢄ ꢋꢂꢅꢏꢋRꢐꢇꢁ ꢑꢐꢏꢌ0ꢌ0ꢒꢌꢎꢓꢀꢈ
ꢃ
ꢃ
Rꢀꢁ
ꢀ
ꢀꢁ ꢀꢁ
ꢀꢁ ꢀꢁꢁꢂꢃ
ꢀꢁꢂꢀꢁ
ꢀꢁꢂꢀꢁ
ꢁꢂ
ꢀꢁ
ꢋ
ꢋ
ꢋ
ꢄ ꢊꢔꢆꢋꢂꢆ ꢌꢍ0ꢋꢈꢕꢕꢏꢖ
ꢄ ꢁꢗꢘ ꢋꢙꢐꢚꢃꢓꢑꢛꢁꢕꢈꢌ0ꢎꢀꢕꢎ0ꢘꢐ
ꢄ ꢁꢗꢘ ꢋꢜꢎꢓꢕꢑꢛRꢕꢐꢕꢕꢎꢘꢕꢓ0ꢘꢐ
ꢅꢆꢐ
ꢅꢆꢉ
ꢂꢔꢁ
ꢀRꢁ
ꢂꢂ
ꢀꢁꢂꢃ
ꢀ
ꢁꢂ
ꢄꢄ
ꢀRꢁꢂꢁ
ꢀꢁꢂꢃꢄ
ꢋꢉꢄ ꢁꢗꢘ ꢋꢙꢐꢎꢏꢓꢑꢛꢁꢕꢈꢕꢕꢜꢘꢌꢍ0ꢐꢐ
ꢗꢌꢄ ꢆꢈꢑꢃꢈRꢅꢐ ꢃꢆꢈꢕ00ꢌ0ꢈR
0ꢀꢁꢂꢃ
ꢀꢁꢂꢃꢄ
ꢀRꢁꢂ
ꢀꢁꢂꢃꢄꢅꢆ
ꢀꢁR
ꢀ ꢁ
ꢂꢃꢄ
ꢁ
ꢂꢃꢄ
ꢅꢂꢆꢆꢂꢇꢈ ꢁ ꢇꢋꢌꢊ ꢁ ꢍ ꢎꢏꢁ
ꢉꢊ ꢉꢊ
ꢐꢆꢑꢒꢓꢈ ꢑꢄ ꢎꢏꢁ ꢇꢋꢌꢊ ꢁ ꢔ ꢎꢏꢁ
ꢉꢊ
ꢀꢁꢂ
ꢀꢁꢂꢃ
ꢄꢄ
ꢀꢀꢁꢂ
ꢀꢀ
ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢀ
ꢀ00ꢁ
ꢀ00ꢁꢂ
0ꢀꢁꢂꢃ
ꢀꢁꢂꢃ
ꢄꢄ
ꢀꢁRꢂꢃ
ꢀꢁRꢂꢃ
ꢀꢁꢂ
ꢀꢁꢂꢃ ꢄꢅꢃ
Figure 12. 8V to 140V Input, 5A 535kHz Surge Stopper for 24V or 28V Systems
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PART
NUMBER DESCRIPTION
COMMENTS
+
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LT4356
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4V to 72V Operation, 80V Protection, 8µA, I , MSOP-10, DFN-10 Packages
Q
LTC3895/ 150V Low I , Synchronous Step-Down DC/DC Controller
4V ≤ V ≤ 140V, 150V , 0.8V ≤ V
≤ 60V, I = 40µA PLL Fixed Frequency
Q
IN
PK
OUT
Q
LTC7801 100% Duty Cycle Capability, Adjustable 5V to 10V Gate Drive 50kHz to 900kHz
LTC3896 150V Low I , Synchronous Inverting DC/DC Controller
4V ≤ V ≤ 140V, 150V , –60V ≤ V ≤ –0.8V, Ground-Reference Interface
OUT
Q
IN
PK
Pins, Adjustable 5V to 10V Gate Drive, I = 40µA
Q
LTC3871 Bidirectional PolyPhase® Synchronous Buck or Boost
Controller
V
HIGH
Up to 100V, V
Up to 30V, High Power Buck or Boost On Demand
LOW
LTC3639 High Efficiency, 150V 100mA Synchronous Step-Down
Regulator
Integrated Power MOSFETs, 4V ≤ V ≤ 150V, 0.8V ≤ V
Q
≤ V ,
IN
IN
OUT
OUT
OUT
I = 12µA, MSOP-16 (12)
LTC3638 High Efficiency, 140V 250mA Synchronous Step-Down
Regulator
Integrated Power MOSFETs, 4V ≤ V ≤ 140V, 0.8V ≤ V
≤ V ,
IN
IN
I = 12µA, MSOP-16 (12)
Q
LTC7138 High Efficiency, 140V 400mA Synchronous Step-Down
Regulator
Integrated Power MOSFETs, 4V ≤ V ≤ 140V, 0.8V ≤ V
≤ V ,
IN
IN
I = 12µA, MSOP-16 (12)
Q
LTC7103 105V, 2.3A Low EMI Synchronous Step-Down Regulator
4.4V ≤ V ≤ 105V, 1V ≤ V
≤ V , I = 2µA Fixed Frequency 200kHz to
OUT IN Q
IN
2MHz, 5mm × 6mm QFN
Rev 0
D16886-0-5/18(0)
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32
ANALOG DEVICES, INC. 2018
For more information www.analog.com