LT1073CS8-5#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT1073CS8-5#TRPBF is a micropower buck-boost switching regulator by Analog Devices with a fixed 5 V output and 1.5 A switch current rating. Key specs: 1 V to 30 V input range, pulse-frequency modulation control, 8-SOIC package. Available in tape-and-reel with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1073CS8-5#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.4100(MOQ 19)
- 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 LT1073CS8-5#TRPBF?
- Wide 1 V to 30 V input range enabling operation from depleted batteries through to regulated bus supplies in flexible portable designs
- Pulse-frequency modulation control achieving high efficiency at light loads, ideal for battery-powered systems with varying current demand
- Fixed 5 V output with 1.5 A switch current capability supporting both buck and boost conversion from a single 8-SOIC IC
- Voltage-mode control with external components setting inductance and capacitance for optimized transient response in single-output supply designs
What is LT1073CS8-5#TRPBF used for?
The LT1073CS8-5#TRPBF is designed for battery-powered portable instruments, handheld medical devices, and remote sensor nodes that require a regulated 5 V rail from sources ranging from a single alkaline cell (1 V) to a 30 V battery pack. Its buck-boost topology and PFM control maintain efficiency across light and heavy load conditions, making it equally suitable for IoT edge devices and low-power data-acquisition systems needing a stable 5 V from widely varying input voltages.
What are the specifications of LT1073CS8-5#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1610 (S8) |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 1V |
| Input Voltage-Nom | 1.5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.5A |
| Output Voltage-Max | 5.25V |
| Output Voltage-Min | 4.75V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 23kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
| Country of Origin | Malaysia |
Where can I find the LT1073CS8-5#TRPBF datasheet?
LT1073CS8-5#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1073CS8-5#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range and output voltage of the LT1073CS8-5#TRPBF?
The LT1073CS8-5#TRPBF accepts input voltages from 1 V to 30 V and delivers a fixed regulated output of 5 V with a 1.5 A switch current rating. This wide input range allows operation from a single alkaline cell up through a multi-cell battery pack or a regulated 24 V industrial supply.
How does pulse-frequency modulation in the LT1073CS8-5#TRPBF improve efficiency in battery-powered designs?
Pulse-frequency modulation reduces switching losses at light loads by decreasing the switching frequency when output current is low, unlike fixed-frequency PWM controllers that switch continuously. For battery-powered IoT or medical devices drawing 10 mA to 100 mA most of the time, this PFM behavior extends battery run time compared to a 5 V linear regulator or a fixed-frequency buck converter.
When would the LT1073CS8-5#TRPBF buck-boost topology be chosen over a simple boost converter for a 5 V rail?
A buck-boost is required when the input can be either above or below the 5 V output, such as a 3-cell NiMH battery pack that starts at 3.9 V and charges to 4.5 V. The LT1073CS8-5#TRPBF handles the full 1 V to 30 V input span, regulating 5 V continuously as the battery discharges past the output voltage, which a boost-only topology cannot do.
What package does the LT1073CS8-5#TRPBF use and how does it affect PCB layout for switching regulators?
The LT1073CS8-5#TRPBF is housed in an 8-SOIC package (3.90 mm width, 0.154 inch). The SO-8 footprint requires an external inductor and capacitors placed close to the IC to minimize switching node loop area, keeping radiated EMI within acceptable limits for medical and portable electronics certifications such as FCC Part 15 Class B.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $7.1700 | $136.23 |
| 250+ | $5.8750 | $1468.75 |
| 1000+ | $5.4100 | $5410.00 |
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