LTC3869IGN-2#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3869IGN-2#PBF is a dual 2-phase synchronous step-down switching controller supporting 4 V to 38 V input range and adjustable output from 0.6 V to 12.5 V. It uses current-mode PWM control for tight transient regulation in high-current power supplies. Available in a 28-pin GN package with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC3869IGN-2#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.9800(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual 2-phase synchronous step-down controller with 4 V to 38 V input range and current-mode PWM control
- Adjustable output voltage from 0.6 V to 12.5 V also operates as an LDO regulator for design flexibility
- 28-pin small outline GN package enables compact PCB layout for dense power supply designs
Applications
The LTC3869IGN-2#PBF is suited for high-current multi-phase DC-DC power conversion in servers, telecom infrastructure, and industrial power systems. Its 4 V to 38 V input range and dual 2-phase operation enable efficient voltage regulation for FPGA core rails and processor power planes. It also supports LDO mode operation, making it adaptable for battery-powered portable instrumentation requiring tight output voltage control.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1641 (GN28) |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES AS LDO REGULATOR, OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 12.5V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 38V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 12.5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 850kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output voltage adjustment does the LTC3869IGN-2#PBF support?
The LTC3869IGN-2#PBF operates from a 4 V to 38 V input supply and provides an adjustable output voltage range of 0.6 V to 12.5 V. It uses current-mode PWM control, allowing precise regulation across a wide range of load conditions in dual 2-phase synchronous buck configurations.
How does the 2-phase architecture of LTC3869IGN-2#PBF reduce input ripple in high-current server power supplies?
The dual 2-phase interleaved switching of LTC3869IGN-2#PBF effectively doubles the output ripple frequency, reducing input and output capacitor ripple current by up to 50% compared to single-phase designs. This allows use of fewer bulk capacitors on server motherboard 12 V rails, saving board area and component cost while maintaining regulation within tight tolerances.
When does using LTC3869IGN-2#PBF in LDO regulator mode benefit low-dropout power designs?
When input-output voltage differentials drop below the minimum required for switching regulation, the LTC3869IGN-2#PBF can transition to LDO regulator mode, maintaining a stable output from 0.6 V upward. This dual-mode capability is valuable in battery-powered systems where the supply voltage may fall close to the 4 V minimum, ensuring continuous power delivery without requiring a separate LDO device.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.5800 | $9.58 |
| 10+ | $6.4880 | $64.88 |
| 19+ | $5.2800 | $100.32 |
| 1000+ | $3.9800 | $3980.00 |
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