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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
- Back-up power supply circuit
- Energy Harvest devices
- 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 | Status | Product series | L (µH) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | IRP,40K (A) | Mount | IR (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | Type | H (mm) | W (mm) | IR (A) | ISAT1 (A) | ISAT2 (A) | Version | RDC typ. (mΩ) | VOP (V) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74479775222A | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PMI Power Multilayer Inductor | 2.2 | – | – | 250 | 50 | – | SMT | 700 | 1000 | 700 | 200 | Low RDC | 1 | 1.2 | – | – | – | SMT | – | – | ||
| 74479787222Ai | SPEC | 74479887222A | – | – | PTN i| Production will be discontinued. Expected lifetime: <2 years. | WE-PMI Power Multilayer Inductor | 2.2 | – | – | 106.25 | 55 | – | SMT | 1300 | 1800 | 700 | 85 | Low RDC | 0.8 | 2 | – | – | – | SMT | – | – | – |
| 74479889222i | SPEC | 74479887222A | – | – | PTN i| Production will be discontinued. Expected lifetime: <2 years. | WE-PMI Power Multilayer Inductor | 2.2 | – | – | 312.5 | 50 | – | SMT | 900 | 1300 | 1700 | 250 | High Saturation Current | 1.2 | 2 | – | – | – | SMT | – | – | – |
 | 74438313022 | SPEC | – | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 2.2 | 1.5 | 3.25 | 388 | 70 | 1.25 | SMT | – | – | 2500 | – | – | 1 | 1.6 | 0 | – | – | SMT | 337 | 80 | ||
 | 74438343022 | SPEC | – | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 2.2 | 1.65 | 3.3 | 270 | 70 | 1.65 | SMT | – | – | 2500 | – | – | 1 | 1.6 | 1.1 | – | – | SMT | 225 | 80 | ||
 | 74438322022 | SPEC | – | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 2.2 | 1.4 | 2.8 | 302 | 60 | 1.65 | SMT | – | – | 2200 | – | – | 0.8 | 2 | 1.34 | – | – | SMT | 252 | 80 | ||
| 74438323022 | SPEC | – | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 2.2 | 2 | 3.55 | 176 | 60 | 2.2 | SMT | – | – | 2500 | – | – | 1 | 2 | 1.3 | – | – | SMT | 147 | 80 | ||
 | 78438322022 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAIA SMT Power Inductor | 2.2 | 1.4 | 2.8 | 302 | 60 | 1.65 | SMT | – | – | – | – | – | 0.8 | 2 | – | – | – | SMT | 252 | – | ||
| 78438323022 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAIA SMT Power Inductor | 2.2 | 2 | 3.55 | 176 | 60 | 2.2 | SMT | – | – | – | – | – | 1 | 2 | – | – | – | SMT | 147 | – | ||
 | 74479276222C | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | 140 | 60 | 2.6 | SMT | 1100 | 1600 | 2500 | – | – | 1 | 1.6 | 2.6 | 1.25 | 2.8 | Low RDC | 130 | – | ||
 | 74479287222 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | 110 | 40 | 3.15 | SMT | 1100 | 1500 | 2500 | – | – | 1 | 2 | 3.15 | 1.5 | 3.1 | Standard | 95 | – | ||
 | 74479288222 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PMCI Power Molded Chip Inductor | 2.2 | – | – | 89 | 50 | 3.95 | SMT | 1200 | 1700 | 2800 | – | – | 1.2 | 2 | 3.95 | 1.4 | 3.25 | High Saturation Current | 80 | – | ||
 | 74405020022 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LQSH SMT High Saturation Power Inductor | 2.2 | – | – | 170 | 53 | – | SMT | – | – | 2150 | – | – | 1 | 1.6 | 1.25 | – | – | – | 142 | – |
| 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 | – | |
| 74479276222C | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | |
| 74479287222 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | |
| 74479288222 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | |
| 74405020022 | SPEC | – |
| Samples |
|---|
| – |
| – |
| Order Code | Datasheet | Replacement Order Code | Simulation | Downloads | Status | Product series | L (µH) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | IRP,40K (A) | Mount | IR (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | Type | H (mm) | W (mm) | IR (A) | ISAT1 (A) | ISAT2 (A) | Version | RDC typ. (mΩ) | VOP (V) | Samples |
|---|
