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Torex XC9276
Ultra-Low Quiescent Current, Synchronous Step-Down PFM DC/DC Converter with Output voltage selectable function
Overview
| Topology | Buck Converter |
| Input voltage | 1.8-6 V |
| Output 1 | 3.6 V / 0.15 A |
Description
The XC9276 Series is a 150mA step-down synchronous rectification DC/DC converter which has an output voltage switchover function with an ultra-low power consumption circuit and a PFM control. The efficiency performance at a light load current is dramatically improved by implementing ultra-low power consumption circuits which has 200nA consumption current, and PFM control method. Additionally two-preset output voltage switchover function is available with using VSET pin. This function can select an appropriate output voltage based on the MCU behavior mode and contribute a power consumption reduction for a total system. Due to these functions, XC9276 series are suitable for equipment which needs a high efficiency performance at a light load current, and a long-time battery life. XC9276 series are compatible to 2.2uH inductor therefore it can reduce an output ripple voltage which is a negative side of PFM control method, and a PCB board area size..
Features
- Input Voltage Range:1.8V ~ 6.0V
- Output Voltage Setting:0.5V ~ 1.9V (0.05V increments)2.0V ~ 3.6V (0.1V increments)
- Output Voltage Accuracy ±20mV (VOUT(T)≦1.0V) ±2.0% (VOUT(T)＞1.0V)
- Output Current:150mA
- Supply Current:200nA @ VOUT(T)=1.8V (TYP.)
- Control Method:PFM control
- Function:Output Voltage selectable functionCL Discharge (D Type)UVLO function
- Protection Functions:Short Protection
- Input / Output Capacitor:Ceramic Capacitor Compatible
- Operation Ambient Temperature : -40 ~ 85°C
- Package:WLP-6-03 (1.72 x 1.07x 0.33mm)SOT-26W (2.9 x 2.8 x 1.3mm)USP-8B06 (2.0 x 2.0 x 0.33mm)
- Environmentally Friendly EU RoHS compliant, Pb Free
Typical applications
- Energy Harvest devices
- Back-up power supply circuit
- Smart meter, Low Power RF, Sensor Module, Smart card, Devices with 1 Lithium cell.
- Wearable Devices
More information
Products
| Order Code | Datasheet | Replacement Order Code | Simulation | Downloads | Product series | L (µH) | IR,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | IR (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | Type | H (mm) | W (mm) | IR (A) | ISAT1 (A) | ISAT2 (A) | Version | IRP,40K (A) | RDC typ. (mΩ) | V (V) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74479775222A | SPEC | – | 8 files | WE-PMI Power Multilayer Inductor | 2.2 | – | – | – | 250 | 50 | SMT | 700 | 1000 | 700 | 200 | Low RDC | 1 | 1.2 | – | – | – | SMT | – | – | – | ||
| 74479787222Ai | SPEC | 74479887222A | – | – | WE-PMI Power Multilayer Inductor | 2.2 | – | – | – | 106.25 | 55 | SMT | 1300 | 1800 | 700 | 85 | Low RDC | 0.8 | 2 | – | – | – | SMT | – | – | – | – |
| 74479889222i | SPEC | 74479887222A | – | – | WE-PMI Power Multilayer Inductor | 2.2 | – | – | – | 312.5 | 50 | SMT | 900 | 1300 | 1700 | 250 | High Saturation Current | 1.2 | 2 | – | – | – | SMT | – | – | – | – |
 | 74438313022 | SPEC | – | 9 files | WE-MAPI SMT Power Inductor | 2.2 | 1.25 | 1.5 | 3.25 | 388 | 70 | SMT | – | – | 2500 | – | – | 1 | 1.6 | 0 | – | – | SMT | 1.25 | 337 | 80 | ||
 | 74438343022 | SPEC | – | 9 files | WE-MAPI SMT Power Inductor | 2.2 | 0 | 1.65 | 3.3 | 270 | 70 | SMT | – | – | 2500 | – | – | 1 | 1.6 | 1.1 | – | – | SMT | 1.65 | 225 | 80 | ||
 | 74438322022 | SPEC | – | 9 files | WE-MAPI SMT Power Inductor | 2.2 | 0 | 1.4 | 2.8 | 302 | 60 | SMT | – | – | 2200 | – | – | 0.8 | 2 | 1.34 | – | – | SMT | 1.65 | 252 | 80 | ||
| 74438323022 | SPEC | – | 9 files | WE-MAPI SMT Power Inductor | 2.2 | 0 | 2 | 3.55 | 176 | 60 | SMT | – | – | 2500 | – | – | 1 | 2 | 1.3 | – | – | SMT | 2.2 | 147 | 80 | ||
 | 78438322022 | SPEC | – | 8 files | WE-MAIA SMT Power Inductor | 2.2 | 1.65 | 1.4 | 2.8 | 302 | 60 | SMT | – | – | – | – | – | 0.8 | 2 | – | – | – | SMT | – | 252 | – | ||
| 78438323022 | SPEC | – | 8 files | WE-MAIA SMT Power Inductor | 2.2 | 2.2 | 2 | 3.55 | 176 | 60 | SMT | – | – | – | – | – | 1 | 2 | – | – | – | SMT | – | 147 | – | ||
| 74479887222Ci | SPEC | 74479775222A | – | – | WE-PMI Power Multilayer Inductor | 2.2 | – | – | – | 137.5 | 40 | SMT | 1200 | 1600 | 1500 | 110 | Low RDC & High Saturation Current | 1 | 2 | – | – | – | SMT | – | – | – | – |
 | 74479276222C | SPEC | – | 8 files | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | – | 140 | 60 | SMT | 1100 | 1600 | 2500 | – | – | 1 | 1.6 | 2.6 | 1.25 | 2.8 | Low RDC | 2.6 | – | – | ||
 | 74479287222 | SPEC | – | 8 files | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | – | 110 | 40 | SMT | 1100 | 1500 | 2500 | – | – | 1 | 2 | 3.15 | 1.5 | 3.1 | Standard | 3.15 | – | – | ||
 | 74479288222 | SPEC | – | 8 files | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | – | 89 | 50 | SMT | 1200 | 1700 | 2800 | – | – | 1.2 | 2 | 3.95 | 1.4 | 3.25 | High Saturation Current | 3.95 | – | – | ||
 | 74405020022 | SPEC | – | 8 files | WE-LQSH SMT High Saturation Power Inductor | 2.2 | – | – | – | 170 | 53 | SMT | – | – | 2150 | – | – | 1 | 1.6 | 1.25 | – | – | – | – | 142 | – | ||
| 74479888222 | – | 7 files | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Replacement Order Code | Simulation | |
|---|---|---|---|---|
| 74479775222A | SPEC | – | |
| 74479787222Ai | SPEC | 74479887222A | – |
| 74479889222i | SPEC | 74479887222A | – |
| 74438313022 | SPEC | – | |
| 74438343022 | SPEC | – | |
| 74438322022 | SPEC | – | |
| 74438323022 | SPEC | – | |
| 78438322022 | SPEC | – | |
| 78438323022 | SPEC | – | |
| 74479887222Ci | SPEC | 74479775222A | – |
| 74479276222C | SPEC | – | |
| 74479287222 | SPEC | – | |
| 74479288222 | SPEC | – | |
| 74405020022 | SPEC | – | |
| 74479888222 | – | – |
| Samples |
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| – |
| – |
| – |
| Order Code | Datasheet | Replacement Order Code | Simulation | Downloads | Product series | L (µH) | IR,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | IR (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | Type | H (mm) | W (mm) | IR (A) | ISAT1 (A) | ISAT2 (A) | Version | IRP,40K (A) | RDC typ. (mΩ) | V (V) | Samples |
|---|