LM1771UMM Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM1771UMM is a voltage-mode synchronous buck controller from Texas Instruments supporting 2.8V–5.5V input with PWM control. Ideal for low-voltage DC-DC conversion in portable and embedded applications. From $0.41, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM1771UMM Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4105(MOQ 362)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Voltage-mode PWM control for precise output regulation
- Wide input voltage range: 2.8V to 5.5V (nominal 3.3V)
- Synchronous buck topology for high efficiency
- Compact 8-pin MSOP package for space-constrained designs
- RoHS-compliant, suitable for modern consumer and industrial electronics
Applications
The LM1771UMM is well-suited for portable consumer electronics, battery-powered devices, and embedded systems requiring efficient step-down DC-DC conversion. Its 2.8V–5.5V input range makes it ideal for single-cell Li-ion or regulated 3.3V rail applications. It is also used in DSP/FPGA core power supplies and low-power industrial control boards.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.8V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | S-XDSO-G8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | TSSOP8,.1 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 1000kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM1771UMM:
Switching Controller, Voltage-mode, 6A, 2000kHz Switching Freq-Max, CMOS
Frequently Asked Questions
What is the input voltage range of the LM1771UMM?
The LM1771UMM supports an input voltage range of 2.8V to 5.5V, with a nominal operating voltage of 3.3V. This makes it compatible with single-cell lithium-ion batteries and standard 3.3V regulated supplies.
What control method does the LM1771UMM use?
The LM1771UMM uses voltage-mode pulse width modulation (PWM) as its control technique, enabling stable and precise output voltage regulation in synchronous buck converter designs.
What are typical applications for the LM1771UMM?
Typical applications include portable consumer electronics, battery-powered embedded systems, DSP and FPGA core power supplies, and low-power industrial control equipment requiring efficient step-down DC-DC conversion.
What package does the LM1771UMM come in, and where can I buy it?
The LM1771UMM comes in an 8-pin MSOP (S-XDSO-G8) small outline package. It is available from major distributors worldwide starting from approximately $0.41 per unit, with global shipping options.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 362+ | $0.8300 | $300.46 |
| 1000+ | $0.5495 | $549.50 |
| 10000+ | $0.4900 | $4900.00 |
| 100000+ | $0.4105 | $41050.00 |
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