LM3354MM-3.7 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM3354MM-3.7 is a 90 mA switched-capacitor DC-DC regulator from Texas Instruments with a fixed 3.7 V output, enabling inductor-free voltage conversion with minimal external components in a compact Small Outline package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- LM3354MM-3.7 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 90 mA output current capability in switched-capacitor topology eliminating inductor requirement for simpler, smaller PCB designs
- Fixed 3.7 V regulated output voltage optimized for lithium-ion battery charging and single-cell Li-ion applications
- Switched-capacitor architecture providing low EMI operation compared to inductor-based DC-DC converters in noise-sensitive circuits
- Small Outline package enabling compact PCB layout for space-constrained portable and IoT device power stages
Applications
LM3354MM-3.7 is suited for battery-powered portable electronics, IoT devices, and handheld instruments requiring a stable 3.7 V regulated supply without the complexity of an inductor-based switching converter. The switched-capacitor topology makes it ideal for compact designs such as wireless sensor nodes and medical wearables where low electromagnetic interference and small footprint are critical design requirements. It is commonly used as a local voltage regulator in systems converting 5 V USB or battery inputs to 3.7 V rails for RF modules and analog front-ends.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHED CAPACITOR REGULATOR |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3354MM-3.7:
Switched Capacitor Regulator, 0.07A, 1400kHz Switching Freq-Max, CMOS, PDSO10
Frequently Asked Questions
What input voltage range does LM3354MM-3.7 require to maintain its 3.7 V regulated output at 90 mA?
LM3354MM-3.7 is a switched-capacitor regulator with a fixed 3.7 V output, requiring an input voltage above 3.7 V for step-down operation. Typical operation uses input voltages of 4.5 V to 5.5 V for USB or wall-adapter powered systems, delivering up to 90 mA output current. The switched-capacitor topology means efficiency depends on the input-to-output ratio, with best efficiency at specific voltage conversion ratios such as 5 V to 3.7 V.
How does LM3354MM-3.7's switched-capacitor design eliminate EMI compared to inductor-based regulators?
Unlike inductor-based buck converters that switch large currents through an inductor at frequencies of 200 kHz to 2 MHz generating significant magnetic field EMI, LM3354MM-3.7's switched-capacitor regulator transfers energy through flying capacitors without an inductor. This eliminates the primary source of conducted and radiated EMI in switching regulators, making LM3354MM-3.7 suitable for RF-sensitive applications where EMI from an inductor would desensitize nearby 2.4 GHz or sub-1 GHz wireless modules.
What external capacitor values does LM3354MM-3.7 require and how does this compare to a typical LDO regulator?
LM3354MM-3.7 typically requires 2 flying capacitors (typically 1 µF to 4.7 µF each) and an output filter capacitor (typically 10 µF), totaling 3 external capacitors. A comparable LDO regulator typically needs only 1 output capacitor of 1 µF to 10 µF. The switched-capacitor approach uses more capacitors than an LDO but no inductor, resulting in a BOM that is simpler and more cost-effective than an inductor-based buck converter requiring a 4.7 µH to 10 µH power inductor.
For which lithium-ion battery charge scenarios is LM3354MM-3.7's fixed 3.7 V output specifically optimized?
The 3.7 V output voltage of LM3354MM-3.7 matches the nominal voltage of single-cell lithium-ion batteries (typically 3.6 V to 3.7 V nominal, 4.2 V maximum), making it suitable for supplying battery-connected loads that must operate near the battery's nominal level. It is well-suited for post-regulation stages in single-cell Li-ion systems where a stable 3.7 V rail powers analog sensors, low-power MCUs, or RF modules rated for 3.3 V to 4.2 V operation.
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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.
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