RT8077GQW vs ST1S03PUR Comparison
Detailed side-by-side comparison of RT8077GQW by Richtek and ST1S03PUR by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | RT8077GQW | ST1S03PUR |
|---|---|---|
| Brand | Richtek | STMicroelectronics |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.36 | $0.78 |
| Topology | Synchronous Buck (Step-Down) | Step-down (buck) DC-DC converter |
| Input Voltage Range | 2.6 V to 5.5 V | 3 V to 16 V |
| Output Voltage Range | 0.8 V to 5 V (adjustable) | 0.8 V to VIN (adjustable) |
| Output Current | 2 A continuous | — |
| Switching Frequency | Up to 2 MHz (programmable, resistor-set) | 1.5 MHz (typical) |
| Maximum Duty Cycle | 100% (low-dropout operation) | — |
| Control Architecture | Peak current-mode with internal compensation | — |
| Internal Switches | Synchronous low-Rdson MOSFETs (no Schottky required) | — |
| Soft-Start | Internal | — |
| Current Limit | Cycle-by-cycle | — |
| Thermal Protection | Thermal shutdown | — |
| Package | 8-WDFN Exposed Pad (WDFN-8 2x2 mm) | DFN-6 (3x3 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 °C to +85 °C (TA) | — |
| MSL Level | 1 | [DATA_NEEDED: MSL rating] |
| RoHS Status | Compliant | Compliant |
| Control Scheme | — | Current-mode PWM |
| Maximum Output Current | — | 1.5 A |
| DC Output Voltage Tolerance | — | 2 % |
| Internal Soft-Start | — | 50 us to 100 us power-on delay |
| Typical Efficiency | — | > 70 % |
| Quiescent Current (not switching) | — | [DATA_NEEDED: quiescent current value] |
| Operating Temperature Range | — | -40 C to +125 C |