LTC6908IDCB-1#TRMPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
The LTC6908IDCB-1#TRMPBF is an Analog Devices 2-phase programmable oscillator with spread-spectrum frequency modulation (SSFM), operating from 10 kHz to 10 MHz with a 9 ns maximum fall time in a compact surface-mount SOT-23 package. It reduces EMI by spreading the clock spectrum and provides two phase-offset outputs for dual-phase switching regulators. Available from stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LTC6908IDCB-1#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.9200(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 10 kHz to 10 MHz programmable frequency range with 2-phase outputs enables precise timing coordination in dual-phase DC-DC converters without external phase-shift circuitry
- Built-in spread-spectrum frequency modulation (SSFM) reduces conducted and radiated EMI, simplifying FCC/CE compliance for switching power supplies and portable devices
- 9 ns maximum fall time and surface-mount SOT-23 package deliver clean clock edges with minimal PCB area in noise-sensitive mixed-signal and power management designs
Applications
The LTC6908IDCB-1#TRMPBF is used as the timing source for 2-phase interleaved DC-DC boost or buck converters, where its 2 outputs clocked 180 degrees apart reduce input and output ripple current. EMI-sensitive consumer electronics and medical devices rely on its spread-spectrum modulation to lower peak spectral emissions, easing pre-compliance testing at 10 kHz to 10 MHz operating frequencies. Wireless communication base station power supplies and portable instrument clock generators also benefit from its adjustable frequency and low-EMI profile.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1715 |
| YTEOL | 8.5 |
| Additional Feature | TAPE AND REEL |
| Fall Time-Max | 9ns |
| Frequency Adjustment-Mechanical | NO |
| Frequency Stability | 40% |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Operating Frequency-Max | 10MHz |
| Operating Frequency-Min | 0.05MHz |
| Oscillator Type | CMOS |
| Output Load | 5pF |
| Physical Dimension | 3.0mm x 2.0mm x 0.75mm |
| Rise Time-Max | 11ns |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Symmetry-Max | 55/45 % |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the spread-spectrum modulation of the LTC6908IDCB-1#TRMPBF reduce EMI in a switching power supply?
The LTC6908IDCB-1#TRMPBF uses spread-spectrum frequency modulation to vary its clock frequency continuously across a 40% modulation range around the programmed center frequency between 10 kHz and 10 MHz. This spreads the fundamental switching harmonic energy over a wider bandwidth, reducing the peak spectral density measured by a quasi-peak EMI detector and helping designs pass CISPR 22 or FCC Part 15B limits with less filtering.
For a 2-phase interleaved boost converter design, how does the LTC6908IDCB-1#TRMPBF simplify the clocking architecture?
The LTC6908IDCB-1#TRMPBF generates 2 clock outputs that are inherently 180 degrees out of phase, eliminating the need for an external RC phase-shift network or a microcontroller GPIO to stagger the two switching channels. This reduces component count by at least 2 parts and ensures precise phase alignment over the full 10 kHz to 10 MHz frequency range, improving ripple cancellation in the interleaved converter's input capacitor.
What package does the LTC6908IDCB-1#TRMPBF come in, and is tape-and-reel delivery supported for automated PCB assembly?
The LTC6908IDCB-1#TRMPBF is housed in a small surface-mount package (SOT-23 style DCB footprint) and is supplied on tape and reel, as indicated by the TRMPBF suffix. This packaging is fully compatible with standard pick-and-place assembly at production volumes, and the PBF designation confirms RoHS-compliant, lead-free solder compatibility for global market shipment.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 500+ | $3.1750 | $1587.50 |
| 1000+ | $2.9200 | $2920.00 |
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