EL7536

Monolithic 1A Step-Down Regulator

Product Status: Mass Production

OVERVIEW

The EL7536 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 VIN with a resistive divider.

The EL7536 features PWM mode control. The operating frequency is typically 1.4MHz. Additional features include a 100ms Power-On-Reset output, <1µA shut-down current, short-circuit protection, and over-temperature protection.

The EL7536 is available in the 10-pin MSOP package, making the entire converter occupy less than 0.15in2 of PCB area with components on one side only. Both packages are specified for operation over the full -40°C to +85°C temperature range.

KEY FEATURES

  • Less than 0.15in2 (0.97cm2) footprint for the complete 1A converter
  • Components on one side of PCB
  • Max height 1.1mm MSOP10
  • 100ms 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 plus anneal available (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
EL7536
Basic Information
Production Status
Mass Production
Topology
Buck
# of Outputs
1
Input Voltage Min (V)
2.5
Input Voltage Max (V)
5.5
Output Voltage Min (V)
0.8
Output Voltage Max (V)
5.5
Output Current Max (A)
1
IQ
0.4 mA
Switching Freq. (max) (MHz)
1.4
Switching Freq. (min) (MHz)
1.4
Max Duty Cycle (%)
See Datasheet
Qualification Level
Standard
Peak Efficiency (%)
94
POR
Yes
BOM Total Footprint (mm2)
503.2
Control Type
Voltage Mode
Switching Frequency Range (MHz)
1.4
Can Sample
YES
Temperature Range
-40 to +85

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