LTC3406BES5-1.8#TRMPBF Analog Devices Integrated Circuit (SOT23 (5-Pin)) In Stock
Analog Devices LTC3406BES5-1.8#TRMPBF is a 1.5 MHz synchronous step-down regulator delivering 600 mA output current with a fixed 1.8 V output in a compact 5-pin ThinSOT package. It operates from 2.5 V to 5.5 V input and uses current-mode PWM control for fast transient response. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LTC3406BES5-1.8#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.6250(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3406BES5-1.8#TRMPBF?
- 1.5 MHz switching frequency minimizes external inductor and capacitor size for ultra-compact power supply designs
- 600 mA output current capability supports a wide range of microcontroller and DSP core power rails from a 2.5 V to 5.5 V input
- 5-pin ThinSOT package enables very small PCB footprint, ideal for space-constrained portable and wearable electronics
What is LTC3406BES5-1.8#TRMPBF used for?
The LTC3406BES5-1.8#TRMPBF is designed for battery-powered portable electronics such as smartphones, tablets, and IoT sensor nodes that require a compact, efficient 1.8 V power rail from a Li-ion or single-cell battery input of 2.5 V to 5.5 V. Its 1.5 MHz switching frequency allows the use of tiny 1 µH to 4.7 µH inductors, saving board space in wearable devices and handheld instruments. The current-mode PWM control ensures stable regulation and fast transient response under dynamic load conditions typical of microcontroller-based systems.
What are the specifications of LTC3406BES5-1.8#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1635 |
| YTEOL | 8.5 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.25A |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.4mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1800kHz |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LTC3406BES5-1.8#TRMPBF datasheet?
LTC3406BES5-1.8#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3406BES5-1.8#TRMPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LTC3406BES5-1.8 and which battery types does it support?
The LTC3406BES5-1.8#TRMPBF accepts an input voltage between 2.5 V and 5.5 V, making it directly compatible with single-cell lithium-ion batteries (nominally 3.6 V), USB 5 V rails, and two-cell alkaline or NiMH battery packs. The 2.5 V minimum input ensures continuous regulation even at the end of a Li-ion discharge cycle, which is critical for maximizing battery runtime in portable devices.
How does the 1.5 MHz switching frequency of the LTC3406BES5-1.8 reduce total solution size?
The 1.5 MHz switching frequency allows the use of inductors as small as 1 µH to 2.2 µH and output capacitors of 10 µF or less, compared to 4.7 µH to 10 µH inductors required by lower-frequency regulators. This significantly shrinks the total solution footprint, which combined with the 5-pin ThinSOT package enables a complete 1.8 V, 600 mA power supply in under 10 mm² of PCB area, essential for compact IoT and wearable designs.
When is the LTC3406BES5-1.8 preferred over a non-synchronous step-down regulator for a 1.8 V rail?
The LTC3406BES5-1.8#TRMPBF is preferred over non-synchronous regulators when efficiency at light loads below 100 mA is important, since the synchronous rectifier eliminates the forward voltage drop of an external Schottky diode that would otherwise dissipate 0.3 V to 0.5 V. This results in 5% to 10% higher efficiency in light-load conditions common in sleep-mode operation of battery-powered systems. The fully integrated synchronous switch also eliminates one external component, reducing BOM cost and assembly complexity.
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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+ | $5.2500 | $5.25 |
| 3+ | $3.5000 | $10.50 |
| 8+ | $2.6250 | $21.00 |
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