Texas Instruments LM3370SDX-4221/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.54 | $1.54 |
| 15+ | $1.49 | $22.35 |
| 25+ | $1.46 | $36.50 |
| 50+ | $1.38 | $69.00 |
| 100+ | $1.22 | $122.00 |
| N+ | $0.24 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V, 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 600mA |
| Frequency - Switching | 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -30°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-WFDFN Exposed Pad |
| Supplier Device Package | 16-WSON (5x4) |
| ROHS |  |
The Texas Instruments LM3370SDX-4221 is a dual-output synchronous Buck converter optimized for battery-powered portable electronics. It operates from a 2.7V to 5.5V input and delivers fixed 1.8V and 3.3V outputs, each rated at 600mA. The 2MHz switching frequency enables the use of tiny external components, making it ideal for space-limited designs. High conversion efficiency helps extend battery life, while the 16-WFDFN exposed pad package provides effective thermal management.
- Dual Fixed Outputs: Provides 1.8V and 3.3V rails without external feedback resistors, simplifying design.
- Small Solution Size: 2MHz switching and 16-WFDFN package minimize inductor and capacitor footprint.
- High Efficiency: Synchronous buck topology maximizes battery life in portable devices.
- Stable Operation: Fixed-frequency PWM ensures low output ripple across load conditions.
Digital Core and I/O Power
The 1.8V and 3.3V outputs are ideal for powering microcontrollers, memory, and digital I/O in portable systems, providing clean, stable rails from a single battery.
Portable Audio Players
Low noise and high efficiency at 2MHz make it suitable for audio codecs and amplifiers, minimizing interference and maximizing playback time.
Wearable Fitness Trackers
The compact 16-WFDFN package and 600mA per channel support the small form factor and moderate power needs of wearables, including sensors and displays.
Handheld GPS/Navigation Devices
With a 2.7V to 5.5V input, it efficiently steps down battery voltage to 1.8V and 3.3V for processor and GPS receiver, extending operational hours.
Smart Home Sensors
For battery-powered door/window sensors and thermostats, the dual outputs power both the MCU and wireless transceiver, simplifying power tree design.
Point-of-Sale Terminals
In portable POS devices, the converter provides reliable 1.8V and 3.3V rails for card readers and displays, with high efficiency for all-day operation.
- Q: What type of converter is the LM3370SDX-4221?
- A: It is a dual-output synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 5.5V.
- Q: What are the output voltages?
- A: The fixed outputs are 1.8V and 3.3V.
- Q: What is the maximum output current?
- A: Each output can deliver up to 600mA.
- Q: What is the switching frequency?
- A: It operates at a fixed 2MHz switching frequency.
- Q: What package is available?
- A: It comes in a 16-WFDFN exposed pad package.
LM3370SDX-4221/NOPB.pdf
- Q: What type of converter is the LM3370SDX-4221?
- A: It is a dual-output synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 2.7V to 5.5V.
- Q: What are the output voltages?
- A: The fixed outputs are 1.8V and 3.3V.
- Q: What is the maximum output current?
- A: Each output can deliver up to 600mA.
- Q: What is the switching frequency?
- A: It operates at a fixed 2MHz switching frequency.
- Q: What package is available?
- A: It comes in a 16-WFDFN exposed pad package.
