STBLW35TTR STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
The STBLW35TTR is an STMicroelectronics single-output DC-DC switching regulator supporting step-down and step-up conversion from 0.075 V to 18 V input with up to 70 mA output current in a compact 20-pin VFQFPN package for low-power portable applications.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- STBLW35TTR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STBLW35TTR?
- Wide input range of 0.15 V to 18 V supporting both step-up and step-down DC-DC conversion in a single device
- Ultra-compact 20-pin VFQFPN (S-PQCC-N20) package with exposed heat-sink slug for efficient thermal management in small PCBs
- Single-output switching regulator delivering up to 70 mA for low-power IoT, wearable, and portable device power rails
What is STBLW35TTR used for?
The STBLW35TTR is designed for low-power portable and wearable electronics that require flexible DC-DC conversion from variable or wide-range input sources such as single-cell batteries or harvested energy. Its step-up/step-down topology makes it suitable for battery-powered IoT nodes, sensor modules, and medical wearables where the supply voltage may rise above or fall below the regulated output. The tiny VFQFPN package minimizes board footprint in space-critical designs.
What are the specifications of STBLW35TTR?
| Analog IC - Other Type | SWITCHING REGULATOR |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 0.15V |
| JESD-30 Code | S-PQCC-N20 |
| Number of Functions | 1 |
| Output Current-Max | 0.07A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.12SQ,16 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Philippines |
Where can I find the STBLW35TTR datasheet?
STBLW35TTR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STBLW35TTR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range and maximum output current of the STBLW35TTR, and what converter topology does it support?
The STBLW35TTR supports an input voltage range of 0.15 V to 18 V and delivers a maximum output current of 70 mA. It implements both step-down (buck) and step-up (boost) conversion in a single device, allowing it to regulate output voltage regardless of whether the input is above or below the target rail—ideal for battery-powered applications with a wide discharge curve.
How does the 20-pin VFQFPN package of the STBLW35TTR benefit thermal management in a compact PCB design?
The STBLW35TTR is housed in a 20-pin VFQFPN (S-PQCC-N20) package, which includes an exposed heat-sink slug on the underside of the IC. This slug conducts heat directly to the PCB copper plane, significantly reducing junction temperature compared to packages without thermal pads—important for a switching regulator handling up to 70 mA in a very thin profile form factor.
When is the STBLW35TTR a suitable alternative to discrete buck or boost converters for single-cell battery-powered designs?
The STBLW35TTR is a strong alternative to discrete buck or boost solutions when the design requires both step-up and step-down operation from a single-cell lithium battery (nominally 3.7 V, discharging to about 2.7 V) to a fixed rail such as 3.3 V. A discrete solution would need two separate converter stages, whereas the STBLW35TTR handles both modes with a 0.15 V to 18 V input in one 20-pin package, saving board space and BOM count.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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