LTC3528EDDB-2#TRMPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices LTC3528EDDB-2#TRMPBF is a 1 A synchronous step-up DC/DC converter switching at 2 MHz with input voltage range of 0.5 V to 5.5 V and adjustable output from 1.6 V to 5.25 V. Housed in a compact 2 mm x 3 mm DFN package enabling ultra-small battery boost solutions. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3528EDDB-2#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.9375(MOQ 19)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3528EDDB-2#TRMPBF?
- 1 A output current synchronous step-up converter at 2 MHz switching frequency enabling small external inductor and capacitor selection for minimal PCB footprint
- Ultra-wide 0.5 V to 5.5 V input voltage range supporting single-cell alkaline, NiMH, and Li-Ion battery boost from near-depleted 0.5 V to full 5.5 V USB rail
- Adjustable output voltage from 1.6 V to 5.25 V via external resistor divider enabling flexible power rail generation for multi-voltage portable system designs
What is LTC3528EDDB-2#TRMPBF used for?
The LTC3528EDDB-2#TRMPBF is designed for single-cell to USB 5 V boost conversion in portable consumer electronics, IoT edge devices, and wearable health monitors that must extract maximum energy from nearly-depleted alkaline or Li-Ion batteries starting from 0.5 V. Its 2 MHz switching frequency reduces external inductor size to below 1 µH, enabling extremely compact power supply designs in the 2 mm x 3 mm DFN footprint. Engineers use this device in GPS trackers, Bluetooth Low Energy modules, and handheld instruments requiring a regulated 3.3 V or 5 V output from a single primary cell.
What are the specifications of LTC3528EDDB-2#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1702 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 1.6V TO 5.25V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 0.5V |
| Input Voltage-Nom | 1.2V |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.25V |
| Output Voltage-Min | 1.6V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 2400kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
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 |
Where can I find the LTC3528EDDB-2#TRMPBF datasheet?
LTC3528EDDB-2#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3528EDDB-2#TRMPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LTC3528EDDB-2#TRMPBF support and which battery chemistries does this cover?
The LTC3528EDDB-2#TRMPBF operates from 0.5 V to 5.5 V input, covering single-cell alkaline batteries discharging from 1.5 V to 0.8 V, single-cell NiMH discharging from 1.2 V to 0.9 V, and single-cell Li-Ion from 4.2 V to 2.7 V. The 0.5 V minimum startup threshold extends usable battery life beyond what conventional 0.8 V minimum boost converters achieve.
How does the 2 MHz switching frequency of the LTC3528EDDB-2#TRMPBF affect external component selection?
At 2 MHz switching frequency, the LTC3528EDDB-2#TRMPBF allows use of a small 1 µH to 2.2 µH inductor and 4.7 µF output capacitor, reducing the total external component footprint to less than 10 mm². This is roughly 4x smaller than the inductor required at 500 kHz for the same 1 A output, enabling tighter power supply integration in wearable and IoT PCB designs.
What output voltage range can the LTC3528EDDB-2#TRMPBF deliver and how is it set?
The LTC3528EDDB-2#TRMPBF provides an adjustable output from 1.6 V to 5.25 V set by an external resistor divider from the output node to the FB pin referenced at 0.8 V. For a common 3.3 V output from a 1-cell Li-Ion battery, the converter delivers up to 1 A continuous current with typical conversion efficiency above 90% across the 2.5 V to 3.2 V input range.
How does the synchronous rectification in the LTC3528EDDB-2#TRMPBF improve efficiency compared to a diode-rectified boost converter at 1 A output?
Synchronous rectification replaces the output catch diode with a low on-resistance PMOS switch inside the LTC3528EDDB-2#TRMPBF, reducing rectifier conduction loss by approximately 0.3 V x 1 A = 300 mW compared to a Schottky diode drop. At a 5 V output delivering 1 A, this translates to roughly 6% efficiency improvement, extending battery runtime by the equivalent amount compared to non-synchronous step-up converters of similar switching frequency.
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Why Buy from FindMyChip
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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| 19+ | $4.0600 | $77.14 |
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