IC manufacturers Eta Solutions Co. Ltd.
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Overview
| Topology | Buck Converter |
| Input voltage | 2.4-7.3 V |
| Output 1 | 3.3 V |
| IC revision | 1.0 |
Description
The ETA3499 is a high-efficiency, DC-DC step-down switching regulator, capable of delivering up to 3A output current. The devices operate from an input voltage range of 2.4V to 7.3V and provide output voltage from 0.6V to VIN, making ETA3499 ideal for low voltage power conversions. Running at a fixed frequency of 1MHz allows the use of small inductance value and low DCR inductors, thereby achieving higher efficiency. Other external components, such as ceramic input and output caps can also be small due to higher switching frequency, while maintaining exceptional low noise output voltage. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improved design reliability.
Features
- Wide Input Voltage Range: 2.4 – 7.3V
- Standby Current 42uA (Vout=1.2V, Iout=0A)
- Up to 96% Efficiency
- Up to 3A Max Output Current
- 1MHz Frequency
- Light Load operation
- Internal Compensation
- Tiny SOT23-6L Package
Typical applications
- Set-Top-Box / IP camera / Telecom Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 10 V(DC), 22 pF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance22 pF | Capacitance±5% | Rated Voltage10 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor840 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), 10 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance10 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +85 °C | – | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | |||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | Size6028 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length6 mm | Width6 mm | Height2.8 mm | – | – | Inductance2.2 µH | Rated Current3.75 A | Saturation Current5.6 A | DC Resistance20 mΩ | Self Resonant Frequency69 MHz |