LTC3890EUH#TRPBF
2 800mV~24V Adjustable Step-down type QFN-32-EP(5x5) DC DC Switching Controllers RoHS
60V Low lQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
- Manufacturer
- ADI
- Manufacturer part #
- LTC3890EUH#TRPBF
- Store part #
- C580811
- Package / case
- QFN-32-EP(5x5)
- Category
- DC DC Switching Controllers
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
2,431 in stock
#C580811
Stock & price checked 5 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹1,728.17 | ₹1,728.17 |
| 10+ | ₹1,462.42 | ₹14,624.20 |
| 30+ | ₹1,300.31 | ₹39,009.30 |
| 100+ | ₹1,164.28 | ₹1,16,428.00 |
1 × ₹1,728.17
₹1,728.17
excl. GST
₹2,039.24 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 2,500 per reel
LTC3890EUH#TRPBF
₹1,728.17 for 1 + GST
Specifications
- Synchronous Rectifier
- Yes
- Features
- Adjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Built-in LDO regulator
- Number of Channels
- 2
- Topology
- Buck
- Operating Voltage
- 4V~60V
- Switch tube (built-in/external)
- External
- Output Voltage
- 800mV~24V
- Operating Temperature
- -40℃~+125℃@(TJ)
- Frequency - Switching
- 50kHz~900kHz
- Output Type
- Adjustable
- Function
- Step-down type
- Quiescent Current
- 50uA
Packaging & compliance
- RoHS
- ROHS3 Compliant
- Lifecycle
- Active
- ECCN
- EAR99
- Packaging
- Tape & Reel (TR)
- Standard pack
- 2,500 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 0.144 g
Overview
The LTC3890 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 phaselockable frequency of up to 850kHz. Power loss and noise due to the ESR of the input capacitor are minimized by operating the two controller output stages out-of-phase. The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3890 features a precision 0.8V reference and power good output indicators. 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. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.
Applications
- Automotive Always-On Systems
- Battery Operated Digital Devices
- Distributed DC Power Systems
Key features
- Wide VIN Range: 4V to 60V (65V Abs Max)
- Low Operating IQ: 50µA (One Channel On)
- Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
- RSENSE or DCR Current Sensing
- Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
- Phase-Lockable Frequency (75kHz to 850kHz)
- Programmable Fixed Frequency (50kHz to 900kHz)
- Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode Operation at Light Loads
- Selectable Current Limit
- Very Low Dropout Operation: 99% Duty Cycle
- Adjustable Output Voltage Soft-Start or Tracking
- Power Good Output Voltage Monitors
- Output Overvoltage Protection
- Low Shutdown IQ < 14µA
- Internal LDO Powers Gate Drive from VIN or EXTVCC
- No Current Foldback During Start-Up
- Small Low Profile (0.75mm) 5mm × 5mm QFN Package
- AEC-Q100 Qualified for Automotive Applications
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