LT8570EMS8E-1#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT8570EMS8E-1#TRPBF is a current-mode PWM DC-DC converter from Analog Devices supporting 2.55 V to 40 V input and 65 V output for boost, SEPIC, and inverting topologies. It delivers up to 0.25 A output current in a compact 8-pin MSOP-EP package. RoHS-compliant, available on tape and reel with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT8570EMS8E-1#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1300(MOQ 19)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT8570EMS8E-1#TRPBF?
- Wide 2.55 V to 40 V input range supports single-cell Li-Ion through automotive 24 V bus in one design
- Configurable as boost, SEPIC, or inverting converter enabling negative rail generation from a positive supply without additional ICs
- Current-mode PWM control with up to 65 V output rating handles high-voltage LED drivers and industrial sensor bias supplies
What is LT8570EMS8E-1#TRPBF used for?
LT8570EMS8E-1#TRPBF is used in industrial sensor power supplies requiring a regulated negative or boosted output from a 2.55 V to 40 V input bus. Its SEPIC and inverting capability makes it a good fit for generating ±15 V analog rails from a single 5 V or 12 V source on data-acquisition cards. The compact MSOP-EP package and 0.25 A current limit also suit portable medical devices and handheld instruments that need a high-voltage bias rail.
What are the specifications of LT8570EMS8E-1#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 10 |
| Additional Feature | ALSO CONFIGURED AS SEPIC/INVERTING CONVERTER |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 2.55V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 1770kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| 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 |
Where can I find the LT8570EMS8E-1#TRPBF datasheet?
LT8570EMS8E-1#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8570EMS8E-1#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LT8570EMS8E-1#TRPBF support, and which battery chemistries are compatible?
LT8570EMS8E-1#TRPBF accepts 2.55 V to 40 V at its input. This range covers a single-cell Li-Ion battery (2.7 V to 4.2 V), a 3-cell NiMH pack (~3.6 V), and automotive 12 V or 24 V bus rails. The 40 V upper limit also handles load-dump transients in 12 V automotive designs without external clamping.
How does LT8570EMS8E-1#TRPBF generate a negative output rail from a positive supply, and what topology does it use?
The device operates as an inverting converter using a single inductor and output capacitor, producing a negative voltage (for example -5 V) from a +5 V input. The current-mode PWM control maintains regulation across the 0 to 0.25 A load range. This eliminates the need for a separate negative-rail regulator IC, saving board space and BOM cost in analog signal-chain designs.
What is the maximum output voltage LT8570EMS8E-1#TRPBF can produce in boost mode?
In boost configuration, LT8570EMS8E-1#TRPBF supports output voltages up to 65 V, which is sufficient to drive high-voltage LED strings or bias photodiode transimpedance amplifiers. With a 5 V input and 250 mA output capability, it delivers well over 1 W of boosted output power for compact high-voltage supply rails.
What package does LT8570EMS8E-1#TRPBF use, and how does the exposed pad affect thermal performance?
The part is housed in an 8-pin MSOP with an exposed pad (MSOP-EP). The exposed pad reduces junction-to-board thermal resistance compared to a standard MSOP, allowing the 0.25 A switch current to be sustained without exceeding the 125°C junction temperature limit at ambient temperatures up to 85°C with modest copper pour on the PCB.
When is LT8570EMS8E-1#TRPBF a better choice than a standard boost controller for a SEPIC converter design?
LT8570EMS8E-1#TRPBF is preferable when the design needs a non-inverting output equal to or different from the input—such as a regulated 5 V from a 3 V to 6 V battery—because its internal architecture directly supports SEPIC topology. A generic boost controller would require external level-shift circuitry to achieve the same regulation across input voltages above and below the 5 V output, adding complexity and 2 or more passive components.
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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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