LT3483ES6#TRPBF Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
LT3483ES6#TRPBF is a 200 mA, 40 V inverting DC/DC converter from Analog Devices using constant off-time (COT) current-mode control, operating from 2.5 V to 16 V input in a compact SOT-23-6 package. It generates negative output voltages from a positive supply with no external sense resistor needed.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LT3483ES6#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1600(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 LT3483ES6#TRPBF?
- 200 mA peak output current with 40 V output switch rating enables high-voltage negative rail generation from 2.5 V to 16 V input supplies
- Constant off-time (COT) current-mode control delivers fast transient response without external compensation network
- Inverts input voltage to generate negative supplies, eliminating the need for a separate negative-rail converter in mixed-signal designs
- No external current sense resistor required reduces component count and improves converter efficiency
- SOT-23-6 package with only 3 external components (inductor, diode, capacitor) minimizes PCB area in space-constrained portable equipment
What is LT3483ES6#TRPBF used for?
The LT3483ES6#TRPBF is designed for mixed-signal systems requiring a negative supply rail derived from a single positive input bus, such as op-amp bias circuits, ADC reference supplies, and LCD display bias generators in handheld instruments and portable medical devices. Its 2.5 V to 16 V input range makes it compatible with single-cell Li-ion batteries, 5 V USB power, and 12 V industrial supplies, enabling flexible negative voltage generation from -1 V to -40 V depending on external component selection. The device is also used in industrial sensor signal conditioning boards and data acquisition systems where split-rail op-amp supplies of ±5 V or ±12 V are required alongside the main positive logic supply.
What are the specifications of LT3483ES6#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1636 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | CONSTANT OFF TIME |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.23A |
| Output Voltage-Max | -38 V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
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 | Malaysia |
Where can I find the LT3483ES6#TRPBF datasheet?
LT3483ES6#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3483ES6#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT3483ES6#TRPBF support, and what negative output voltages can it generate?
The LT3483ES6#TRPBF accepts input voltages from 2.5 V to 16 V and can generate negative output voltages ranging from approximately -1 V to -40 V depending on the inductor, diode, and feedback resistor selection. This wide output range covers common negative supply requirements such as -5 V for op-amp supplies, -12 V for analog signal conditioning, and higher negative rails for specialized analog circuits, all from a single 2.5 V to 16 V positive input source.
What control method does the LT3483ES6#TRPBF use, and how does constant off-time control benefit transient response?
The LT3483ES6#TRPBF uses constant off-time (COT) current-mode control, where the switch off-time is fixed and the on-time varies with load. This eliminates the need for external loop compensation components, reduces design complexity, and provides fast transient response because the converter reacts to load steps within a single switching cycle. The COT architecture also allows the switching frequency to automatically increase under heavy load, maintaining output regulation with minimal output voltage deviation of typically less than 50 mV during a 200 mA load step.
How many external components does the LT3483ES6#TRPBF require, and what is the minimum PCB footprint for a complete inverting converter?
The LT3483ES6#TRPBF requires only 3 external components: a small inductor (typically 10 µH to 47 µH), a catch diode (Schottky, 40 V rated), and an output capacitor (typically 10 µF to 22 µF). Combined with the 6-pin SOT-23 package measuring approximately 2.9 mm × 2.8 mm, a complete -5 V inverting converter can fit in under 50 mm² of PCB area, making it ideal for space-constrained portable and wearable device designs.
For a split-rail op-amp supply design needing -5 V at 100 mA, when is the LT3483ES6#TRPBF the right choice over a charge pump inverter?
Choose the LT3483ES6#TRPBF over a charge pump inverter when output current exceeds 50 mA, input voltage varies widely (2.5 V to 16 V), or regulated output voltage precision better than 5% is required. Charge pumps are limited to low currents and perform best at fixed input-to-output ratios, while the LT3483ES6#TRPBF's inductive switching topology delivers up to 200 mA with tight regulation and efficiency above 80% even when input voltage is close to the desired -5 V output magnitude.
What is the output current limit of the LT3483ES6#TRPBF, and is it suitable for driving multiple analog ICs simultaneously?
The LT3483ES6#TRPBF provides a 200 mA peak switch current, which translates to a continuous output current of approximately 150 mA at a -5 V output from a 5 V input before efficiency derating. This is sufficient to simultaneously bias 4 to 8 dual op-amps drawing 5 mA to 10 mA each, an ADC reference buffer, and an audio amplifier bias stage from a single negative rail converter in a compact portable measurement system.
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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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