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Overview
| Topology | Buck Converter |
| Input voltage | 2.3-5.5 V |
| Output 1 | 3.3 V / 1.2 A |
| IC revision | 1.0 |
Description
The SC21154 is an ultra high efficiency 1.2A DC/DC buckregulator available in a small MLPD package. These featuresmake the SC21154 perfect for small form factor consumerapplications where high efficiency is essential.SC21154 is an Adaptive On-Time 4MHz switching regulatorat full load conditions.
Features
FeaturesInput voltage range — 2.3V to 5.5V1.2A continuous output current4MHz switching frequencyAdjustable Output Voltage1% output voltage accuracyAdaptive On-Time architectureUp to 100% duty cycleUp to 96% peak efficiencyPower Save mode for efficient light load operation
90% efficiency 30mA to 75mA0.1μA shutdown current21μA quiescent currentProgrammable soft startPre-bias startup protection1.5mm x 2mm, 6-Lead MLPD packageWEEE and RoHS compliant and halogen-free
Typical applications
- GPS devices
- Portable devices/ Wearable Electronics
- Tablet PCs/ Smart Phones
- Battery powered equipment
More information
Products
| Order Code | Datasheet | Replacement Order Code | Downloads | Product series | L (µH) | IR 1 (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | fres (MHz) | Type | H (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74479876147i | SPEC | 74479876147C 74479776147 | – | WE-PMI Power Multilayer Inductor | 0.47 | 1500 | 2100 | 2000 | 40 | 120 | Low RDC & High Saturation Current | 1 | – |
| Order Code | Datasheet | Replacement Order Code | |
|---|---|---|---|
| 74479876147i | SPEC | 74479876147C 74479776147 |
| Samples |
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| – |
| Order Code | Datasheet | Replacement Order Code | Downloads | Product series | L (µH) | IR 1 (mA) | IR 2 (mA) | ISAT (mA) | RDC (mΩ) | fres (MHz) | Type | H (mm) | Samples |
|---|