EL7535

Monolithic 350mA Step-Down Regulator

Product Status: Mass Production

OVERVIEW

The EL7535 is a synchronous, integrated FET 350mA step-down regulator in a 10 Ld MSOP package. The regulator is internally compensated, which makes it possible to use just five tiny external components to form a complete DC/DC converter. The regulator operates with an input voltage range from 2.5V to 6V, which accommodates supplies of 3.3V, 5V, or a Li-Ion battery source. The output can be externally set from 0.8V to VIN with a resistive divider.

The EL7535 features PWM mode control. The operating frequency is typically 1.4MHz. Additional features include <1µA shut-down current, short-circuit protection, and over-temperature protection.

The EL7535 is available in the 10 Ld MSOP package and is specified for operation over the full -40°C to +85°C temperature range.

KEY FEATURES

  • Extremely Small 350mA DC/DC Converter
  • Max Height 1.1mm 10 Ld MSOP Package
  • Possibly Uses Only Five Tiny External Components with Fixed Output
  • Power-On-Reset Output (POR)
  • Internally-Compensated Voltage Mode Controller
  • Up to 94% Efficiency
  • <1µA Shut-Down Current
  • Overcurrent and Over-Temperature Protection
  • Pb-free Available (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
EL7535
Basic Information
Production Status
Mass Production
# of Outputs
1
Topology [Rail 1]
Buck
Input Voltage Min (V) [Rail 1]
2.5
Input Voltage Max (V) [Rail 1]
5.5
Output Voltage Min (V) [Rail 1]
0.8
Output Voltage Max (V) [Rail 1]
5.5
Output Current Max (A) [Rail 1]
0.35
Switching Freq. (max) (MHz)
1.5
Switching Freq. (min) (MHz)
1.5
Max Duty Cycle (%)
See Datasheet
Qualification Level
Standard
Peak Efficiency (%)
94
POR
Yes
Control Type
Voltage Mode
Switching Frequency Range (MHz)
1.5
Temperature Range
-40 to +85

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