(China (Mainland))
Product Summary
The LTC3728LXCUH is a high-performance Dual, 550kHz, 2-Phase Synchronous Regulator.
Parametrics
LTC3728LXCUH Parametrics:
Packaging
Tube
PWM Type
Current Mode
Number of Outputs
2
Frequency - Max
590kHz
Duty Cycle
99.4%
Voltage - Supply
4.5 V ~ 28 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
0°C ~ 85°C
Package / Case
32-WFQFN Exposed Pad
Features
LTC3728LXCUH Features:
- Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
- OPTI-LOOP?Compensation Minimizes COUT
- Power Good Output Voltage Indicator
- Phase-Lockable Fixed Frequency 250kHz to 550kHz
- Dual N-Channel MOSFET Synchronous Drive
- Wide VIN Range: 4.5V to 28V Operation
- Very Low Dropout Operation: 99% Duty Cycle
- Adjustable Soft-Start Current Ramping
- Foldback Output Current Limiting
- Latched Short-Circuit Shutdown with Defeat Option
- Output Overvoltage Protection
- Low Shutdown IQ: 20μA
- 5V and 3.3V Standby Regulators
- 3 Selectable Operating Modes: Constant-Frequency,Burst Mode? Operation and PWM
- 5mm × 5mm QFN
Diagrams
| Image | Part No | Mfg | Description |  |
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 LTC3728LXCUH |
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IC REG CTRLR BUCK PWM CM 32-QFN |
Data Sheet |
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LTC3728LXCUH#PBF |
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IC REG CTRLR BUCK PWM CM 32-QFN |
Data Sheet |
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LTC3728LXCUH#TRPBF |
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IC REG CTRLR BUCK PWM CM 32-QFN |
Data Sheet |
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LTC3728LXCUH#TR |
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IC REG CTRLR BUCK PWM CM 32-QFN |
Data Sheet |
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