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Overview
| Topology | Buck Converter |
| Input voltage | 3-5.5 V |
| Output 1 | 3.3 V / 3 A |
| IC revision | 1.02 |
Description
The RAA23021x is a high efficiency monolithic step-down DC/DC synchronous converter plus a LDO (low dropout) regulator which has an ultra-low power mode.
Features
- DC/DC converter (ch1)
- Synchronous rectification type step-down circuit
- Integrated power MOSFETs
- Preset output voltage (There are also products that have adjustable output voltage using external resistors.)
- Internal phase compensator
- Switching frequency: 1 MHz (fixed)
- Internal timer-latch-type short-circuit protector (fixed delay time)
- 100% duty cycle operation
- LDO (ch2)
- 500mA
- Internal over current protector (foldback-current limiting)
- Ultra low-power save mode (25uA typical)
- Common Features
- Internal rise up sequencer
- Internal digital soft-start function (2 ms fixed soft-start time)
- Internal discharge circuit
- Power good function
- Internal timer-latch-type thermal shutdown circuit (shutdown temperature: 150°C or higher)
- Internal recovery-type under voltage lockout circuit
Typical applications
- Smart meter
- Communication
- Building
- Industrial
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7440620015 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | 1.5 | 4.3 | 4 | 100 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7440620015 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | Samples |
|---|