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R5528 Series

Overvoltage Protection Switch IC with Reverse Bias Blocking

  • Consumer
  • PLP
  • RoHS

The R5528 Series are CMOS-based overvoltage protection switch ICs with reverse bias blocking. The R5528 uses an NMOS pass transistor to achieve low on resistance (Typ. 54mΩ). Overvoltage protection threshold is preset to 6.8V ±3%. Also, continuous current capability is up to 3A. The R5528 consists of a reverse current protection circuit, a soft-start circuit, a startup debounce circuit, an under-voltage lockout (UVLO) circuit, and a thermal shutdown circuit. A 1.27mm square compact WLCSP-9-P1 achieves high density mounting on board.

Specs & Datasheets

Input Voltage Range 2.3 V to 36.0 V (40.0 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 50 µA
Standby Current Typ. 1.0 µA
Output Current Max. 3 A
ON-resistance 54 mΩ (VIN = 5.0 V, IOUT = 100 mA)
Internal FET Nch
Package WLCSP-9-P1
OVP Threshold Accuracy 6.8 V±3%
Startup Debounce Function 15 ms
Thermal Shutdown 150°C

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse OCP UVLO OVLO Soft Start PGOOD Auto Discharge Reset

Technical Documents

Typical Application

Typical Application

Timing Chart

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
  • plpP
WLCSP-9-P1 R5528Z R5528Z-F

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
OCP Overcurrent Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Soft Start Soft Start Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Circuit

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Category:Switch ICs

Features External Power SW,OVP SW
min (V)
max (V)
ON Resistance