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Updated at 04/05/2026 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- The LP3985 is designed for portable and wireless applications with demanding performance and space requirements. LP3985 performance is optimized for battery-powered systems to deliver ultra low noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.
- The LP3985 is stable with a small 1-µF ±30% ceramic or high-quality tantalum output capacitor. The DSBGA requires the smallest possible PC board area the total application circuit area can be less than 2 mm × 2.5 mm, a fraction of a 1206 case size.
- An optional external bypass capacitor reduces the output noise without slowing down the load transient response. Fast startup time is achieved by utilizing an internal power-on circuit that actively pre-charges the bypass capacitor.
- Power supply rejection is better than 50 dB at low frequencies and starts to roll off at 1 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.
- The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 150 mA, from a 2.5-V to 6-V input. The LP3985 consumes less than 1.5 µA in disable mode and has fast turn-on time less than 200 µs.
- The LP3985 is available with fixed output voltages from 2.5 V to 5 V. Contact Texas Instruments Sales for specific voltage option needs.
- Input Voltage: 2.5 V to 6 V
- 100-mV Maximum Dropout with 150-mA Load
- 150-mA Verified Output
- 50-dB PSRR at 1 kHz at VIN = VOUT \+ 0.2 V
- ≤ 1.5-µA Quiescent Current when Shut Down
- Fast Turn-On time: 200 µs (typ.)
- 30-µVRMS Output Noise (typical) over 10 Hz to 100
- kHz
- −40°C to 125°C Junction Temperature Range for
- Operation
- 2.5-V, 2.6-V, 2.7-V, 2.8-V, 2.85-V, 2.9-V, 3-V, 3.1-
- V, 3.2-V, 3.3-V, 4.7-V, 4.75-V, 4.8-V and 5-V
- Outputs Standard
- Logic Controlled Enable
- Stable with Ceramic and High-Quality Tantalum
- Capacitors
- Fast Turnon
- Thermal Shutdown and Short-Circuit Current Limit
LP3985 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Case/Package | SOT-23-5 |
| Output Voltage | 0.3V ~ 6V |
| Output Current | 150 mA |
| Input Voltage | 2.5V ~ 6.0V |
| Show | |
| Product Lifecycle Status | |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
Order guide
-
TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
-
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.
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