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Overview
| Topology | Buck Converter |
| Input voltage | 7-40 V |
| Switching frequency | 210-380 kHz |
| Output 1 | 5 V / 0.3 A |
| IC revision | 1.02 |
Description
The RAA211403 and RAA211405 are tiny, easy-to-use, ultra-low quiescent current (IQ) buck regulators with a wide input voltage range of 7V to 40V and up to 300mA output current. RAA211403 has a fixed output voltage of 3.3V, and the RAA211405 output voltage is 5V.
Features
- 7V to 40V input supply range
- Up to 300mA output current
- IQ = 4μA at 40V, at no load conditions, switching
- IQ = 2.5μA at 40V at no load and no switchingconditions
- RAA211403 is fixed 3.3V VOUT, RAA211405 is fixed 5V VOUT
- Minimum on-time of 75ns
- Variable frequency operation, frequencyprogrammed by external inductor (4.7μH to 15μH)
- Pre-bias, monotonic, and smooth start-up
- Protections: Overcurrent (OC) Limit, input Undervoltage Lockout (UVLO), Over-TemperatureProtection (OTP), output Overvoltage Protection (OVP)
- Accurate EN threshold
- Package: TSOT23-5 (2.9mm×1.63mm)
Typical applications
- Home/Industrial Automation, E-Bikes, Power tools
- Industrial power supplies, Embedded systems and I/O supplies
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74438335100 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | 10 | 1.25 | 2.75 | 446 | 21 | 80 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74438335100 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Samples |
|---|