EL7534

Monolithic 600mA Step-Down Regulator

OVERVIEW

The EL7534 is a synchronous, integrated FET 600mA 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 EL7534 features PWM mode control. The operating frequency is typically 1.5MHz. Additional features include a 100ms Power-On-Reset output, <1µA shut-down current, short-circuit protection, and over-temperature protection.

The EL7534 is available in the 10-pin MSOP package, making the entire converter occupy less than 0.15 in2 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 0.15 in2 (0.97 cm2) footprint for the complete 600mA converter
  • Components on one side of PCB
  • Max height 1.1 mm 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
EL7534
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)
0.6
IQ
400 µA
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
SYNCH Capability
No
Control Type
Voltage Mode
Switching Frequency Range (MHz)
1.5
Temperature Range
-40 to +85

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