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R5523 Series

USB Pch High-side Switch IC

  • Consumer
  • Automotive
  • PLP
  • RoHS

The R5523 Series are CMOS-based USB high side switch IC. R5523 is a protection IC used in power line of USB with built-in current limit circuit, thermal shutdown circuit, and under-voltage lockout circuit (UVLO). R5523 contains an internal delay circuit to prevent output of flag signal of false detection caused by inrush current. SOT-23-5 package is available, which is smaller than SOT-89-5 (R5520).

Specs & Datasheets

  Consumer Automotive
Input Voltage Range 2.2 V to 5.5 V (6.5 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 20 µA
Standby Current Typ. 0.1 µA
Output Current Min. 500 mA
ON-resistance Typ. 130 mΩ
Internal FET Pch
Package SOT-23-5
Thermal Shutdown 135°C

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse OCP UVLO OVLO Soft Start PGOOD Auto Discharge Reset

Technical Documents

Typical Application

Typical Application

*) FLG pin is Nch. open drain output.

R5523N001A Output Voltage vs. Output Current

R5523N001A Output Voltage vs. Output Current

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
  • plpP
SOT-23-5 R5523N R5523N-FE
  • gradeAutomotiveA
  • plpP
SOT-23-5 R5523N R5523N-HE

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Please contact us or our distributors for unpublished reliability information.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 USB SW
min (V)
max (V)
ON Resistance