EL7564 is a monolithic, full-featured synchronous step-down regulator with output voltage adjustable from 1.0V to 3.8V. It is capable of delivering 4A continuous current at up to 95% efficiency. The EL7564 operates at a constant frequency pulse width modulation (PWM) mode, making external synchronization possible. Patented on-chip resistorless current sensing enables current mode control, which provides cycle-by-cycle current limiting, over-current protection, and excellent step load response. The EL7564 features power tracking, which makes the start-up sequencing of multiple converters possible. A junction temperature indicator conveniently monitors the silicon die temperature, saving the designer time on the tedious thermal characterization. The minimal external components and full functionality make this EL7564 ideal for desktop and portable applications. The EL7564 is specified for operation over the -40°C to +85°C temperature range.
The EL7564 is a monolithic 4 A DC/DC step‑down regulator with an adjustable output voltage from 1.0 V to 3.8 V and up to 95 % efficiency. It features integrated synchronous MOSFETs, current‑mode control, cycle‑by‑cycle current limiting, and a junction‑temperature indicator for easy thermal monitoring.
The document includes ordering information, absolute maximum ratings, detailed DC and AC electrical specifications, pin descriptions for the 20‑pin SO and 28‑pin HTSSOP packages, typical application diagrams, and extensive performance curves covering efficiency, load regulation, transient response, and thermal behavior.
| Continuous Output Current | 4 A |
|---|---|
| Efficiency (typical) | up to 95 % |
| Input Voltage Range | 4.5 V to 5.5 V |
| Adjustable Output Voltage | 1 V to 3.8 V |
| Load & Line Regulation | ±0.5 % |
| Switching Frequency (adjustable) | up to 1 MHz |
| Operating Temperature Range | -40 °C to +85 °C |
The EL7564 can deliver a continuous output current of 4 A.
It operates with an input voltage between 4.5 V and 5.5 V.
The regulator can achieve up to 95 % efficiency.