MP2109DQ-LF-Z
IC REG BUCK ADJ 800MA DL 10QFN

Pmic Voltage Regulators Dc Dc Switching Regulators
10-VFDFN Exposed Pad
Not For New Designs
$3.88 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Monolithic Power Systems Inc. |
| Model | MP2109DQ-LF-Z |
| Package / Case | 10-VFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 6V |
| Voltage - Output | 0.6V |
| Current - Output | 800mA |
| Frequency - Switching | 1.24MHz |
| Number of Outputs | 2 |
| Supplier Device Package | 10-QFN (3x3) |
| RoHS | RoHS |
| Part Status | Not For New Designs |
Application & Notes
MP2109DQ-LF-Z by Monolithic Power Systems Inc. is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 6V, output 0.6V. The 10-VFDFN Exposed Pad package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
📖 Technical Guides for MP2109DQ-LF-Z
ESP32 vs STM32: Which MCU is Right for Your Project?
Components Guide
Chinese MCU Alternatives: GD32, AT32, APM32 & More — 40-80% Cost Savings vs ST/NXP/Microchip
Components Guide
Op-Amp Selection Guide: 8 Most Popular Types and When to Use Each
Components Guide
LM358 Alternatives & Replacements: Complete Pin-to-Pin Guide
Components Guide
Alternatives & Replacements
View All →TPS62302DRCR
IC REG BUCK 1.6V 500MA 10VSON
TPS61202DRCR
IC REG BOOST 5V 1.2A 10VSON
TPS62301DRCR
IC REG BUCK 1.5V 500MA 10VSON
TPS62403DRCR
IC REG BUCK PROG/2.8V DL 10SON
TPS62401DRCR
IC REG BUCK PROG/1.8V DL 10SON
TPS62020DRCR
IC REG BUCK ADJ 600MA 10VSON
All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Adjustable |
| Current - Output | 800mA |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Frequency - Switching | 1.24MHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 6V |
| Voltage - Input (Min) | 2.5V |
| Voltage - Output (Max) | 6V |
| Voltage - Output (Min/Fixed) | 0.6V |
Request a Quote
Submit your quantity and details — we will reply within 24 hours.