LTC3869EUFD#TRPBF
2 600mV~12.5V Adjustable Step-down type QFN-28-EP(4x5) DC DC Switching Controllers RoHS
Dual, 2-Phase Synchronous Step-Down DC/DC Controllers
- Manufacturer
- ADI
- Manufacturer part #
- LTC3869EUFD#TRPBF
- Store part #
- C686592
- Package / case
- QFN-28-EP(4x5)
- Category
- DC DC Switching Controllers
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
1,075 in stock
#C686592
Stock & price checked 45 h ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹860.07 | ₹860.07 |
| 10+ | ₹739.03 | ₹7,390.30 |
| 30+ | ₹665.15 | ₹19,954.50 |
| 100+ | ₹603.43 | ₹60,343.00 |
1 × ₹860.07
₹860.07
excl. GST
₹1,014.88 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 2,500 per reel
LTC3869EUFD#TRPBF
₹860.07 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;Overcurrent Protection;Built-in LDO regulator
- Number of Channels
- 2
- Topology
- Buck
- Operating Voltage
- 4V~38V
- Switch tube (built-in/external)
- External
- Output Voltage
- 600mV~12.5V
- Operating Temperature
- -40℃~+125℃@(TJ)
- Frequency - Switching
- 780kHz
- Output Type
- Adjustable
- Function
- Step-down type
- Quiescent Current
- 3mA
Packaging & compliance
- RoHS
- ROHS3 Compliant
- Lifecycle
- Active
- Moisture sensitivity
- MSL 1 (unlimited)
- ECCN
- EAR99
- Packaging
- Tape & Reel (TR)
- Standard pack
- 2,500 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 0.09 g
Overview
The LTC3869 is a high performance dual synchronous step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phaselockable frequency of up to 780kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out-of-phase. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. A wide 4V to 38V input supply range encompasses most battery chemistries. Independent TK/ SS pins for each controller ramp the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode and allows the IC to be synchronized to an external clock. The LTC3869 is available in low profile 4mm × 4mm and 4mm×5mm QFN packages. The LTC3869-2 is available in an SSOP-28 package. The LTC3869 is pin-compatible with the LTC3850.
Applications
- Server Systems
- Telecom Systems
- Industrial and Medical Instruments
- High Power Battery-Operated Devices
- DC Power Distribution Systems
Key features
- Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
- Accurate Multiphase Current Matching
- RSENSE or DCR Current Sensing
- ±0.75% 0.6V Output Voltage Accuracy
- Phase-Lockable Fixed Frequency 250kHz to 780kHz
- High Efficiency: Up to 95%
- Dual N-channel MOSFET Synchronous Drive
- Wide VIN Range: 4V to 38V (40V Max) Operation
- Wide VOUT Range: 0.6V to 12.5V Operation
- Adjustable Soft-Start Current Ramping or Tracking
- Foldback Output Current Limiting
- Output Overvoltage Protection
- Power Good Output Voltage Monitor
- 5V Low Dropout Regulator
- Small 28-Lead QFN and Narrow SSOP Packages
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