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ANALOG DEVICES LTC3890EGN-1#PBF
DC/DC Controller, Synchronous Buck, 4 to 60V Supply, 2 Output, 99% Duty Cycle, 900kHz, NSSOP-28
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LTC3890EGN-1#PBF
- Order Code:
- 4033893
-
- Technical Datasheet:
- LTC3890EGN-1#PBF Datasheet
- ECAD / MCAD
-
Product Overview
LTC3890-1 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase-lockable frequency of upto 850KHz. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase. The 50µA no-load quiescent current extends operating life in battery-powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. Independent TRACK/SS pins for each controller ramp the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. It is widely used in applications such as automotive always-on systems, battery operated digital devices, distributed DC power systems etc.
- Wide output voltage range from 0.8V to 24V
- RSENSE or DCR current sensing
- Low shutdown current is 14µA typical at (RUN1,2 = 0V, TA = 25°C)
- Very low dropout operation: 99% duty cycle, adjustable output voltage soft-start or tracking
- Power good output voltage monitor, output overvoltage protection
- Internal LDO powers gate drive from VIN or EXTVCC, no current foldback during start-up
- Programmable frequency is 105KHz typ at (RFREQ = 25K, PLLIN/MODE = DC voltage)
- Feedback current is ±5nA typ at (TA = 25°C, VIN = 12V)
- Operating temperature range from -40°C to 125°C
- Package style is 28-lead plastic SSOP
Product Information
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- :
- 4V
- :
- 60V
- :
- 2 Output
- :
- 99%
- :
- NSSOP
- :
- 28Pins
- :
- 900kHz
- :
- Synchronous Buck (Step Down)
- :
- -40°C
- :
- 125°C
- :
- -
- :
- -
- :
- MSL 1 - Unlimited
Technical Documents (1)
Available for back order
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49 more will be available on 12/8/23
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Php664.00
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| Quantity | Price | Your Price |
|---|---|---|
| 1+ | Php664.00 | |
| 10+ | Php610.80 | |
| 49+ | Php585.20 | |
| 147+ | Php515.60 | |
| 294+ | Php490.40 | |
| 539+ | Php458.80 | |
| 1029+ | Php420.80 | |
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