LM3370SD-4221 Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
LM3370SD-4221 is a dual switching voltage regulator controller from Texas Instruments. It features automatic PWM/PFM mode, voltage-mode control with pulse width modulation, and supports 2.7V to 5.5V input range. Ideal for portable and battery-powered applications requiring efficient power management.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- LM3370SD-4221 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -30.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3370SD-4221?
- Dual switching controller with automatic PWM/PFM mode for optimized efficiency across load ranges
- Wide input voltage range: 2.7V to 5.5V, suitable for single-cell Li-ion and multi-cell battery systems
- Voltage-mode control with pulse width modulation for stable and precise output regulation
- Available in compact 16-pin Small Outline No-lead (SON) package for space-constrained designs
- Also available in 3.3V output version for flexible system power rail configurations
What is LM3370SD-4221 used for?
The LM3370SD-4221 is well-suited for portable consumer electronics such as smartphones, tablets, and wearables that require efficient dual-rail power conversion from Li-ion batteries. It is also used in handheld industrial instruments and wireless sensor nodes where compact form factor and automatic PWM/PFM switching are critical for extending battery life.
What are the specifications of LM3370SD-4221?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | AUTOMATIC PWM/PFM MODE AVAILABLE; ALSO 3.3 VOLT OUTPUT AVAILABLE |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.4A |
| Output Voltage-Max | 1.863V |
| Output Voltage-Min | 1.737V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC16,.16,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 2400kHz |
| Temperature Grade | OTHER |
| Terminal Finish | TIN |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM3370SD-4221 datasheet?
LM3370SD-4221 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3370SD-4221?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM3370SD-4221?
The LM3370SD-4221 operates over an input voltage range of 2.7V to 5.5V, with a nominal input of 3.6V. This makes it compatible with single-cell Li-ion and Li-polymer battery systems commonly used in portable devices.
What control mode does the LM3370SD-4221 use?
The LM3370SD-4221 uses voltage-mode control with pulse width modulation (PWM). It also features automatic PWM/PFM mode switching, allowing the device to transition to pulse frequency modulation at light loads for improved efficiency.
What package type is the LM3370SD-4221 available in?
The LM3370SD-4221 is available in a 16-pin Small Outline No-lead (SON) package, which provides a compact footprint suitable for space-constrained PCB designs in portable and handheld applications.
What are typical applications for the LM3370SD-4221?
Typical applications include portable consumer electronics, smartphones, tablets, wearables, and handheld industrial instruments. The dual switching controller architecture and wide input range make it ideal for battery-powered systems requiring multiple regulated voltage rails.
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Why Buy from FindMyChip
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.
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