EL7531 Series

Monolithic 1A Step-Down Regulator with Low Quiescent Current

Manufacturer: Renesas Electronics Corporation

Catalog

Monolithic 1A Step-Down Regulator with Low Quiescent Current

Part	Mounting Type	Output Type	Function	Current - Output	Output Configuration	Topology	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Synchronous Rectifier	Supplier Device Package	Package / Case	Package / Case [x]	Package / Case [x]	Voltage - Output (Max) [Max]	Frequency - Switching	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]
Renesas Electronics Corporation EL7531IY	Surface Mount	Adjustable	Step-Down	1 A	Positive	Buck	2.5 V	0.8 V	5.5 V		10-MSOP	10-MSOP 10-TFSOP	3 mm	0.118 in	5.5 V	1.4 MHz	1	85 °C	-40 °C

Catalog

Monolithic 1A Step-Down Regulator with Low Quiescent Current

Description

The EL7531 is a synchronous, integrated FET 1A step-down regulator with internal compensation. It operates with an input voltage range from 2. 5V to 5. 5V, which accommodates supplies of 3. 3V, 5V, or a Li-Ion battery source. The output can be externally set from 0. 8V to VINwith a resistive divider. The EL7531 features automatic PFM/PWM mode control, or PWM mode only. The PWM frequency is typically 1. 4MHz and can be synchronized up to 12MHz. The typical no load quiescent current is only 120µA. Additional features include a Power-Good output, 1µA shut-down current, short-circuit protection, and over-temperature protection. The EL7531 is available in the 10-pin MSOP package, making the entire converter occupy less than 0. 15 in2of PCB area with components on one side only. The 10-pin MSOP package is specified for operation over the full -40°C to +85°C temperature range.