2A, Ultra Low Dropout LDO


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The RT9025 is a high performance positive voltage regulator designed for use in applications requiring very low Input voltage and extremely low dropout voltage at up to 2A(Peak). It operates with a VIN as low as 1V and VDD voltage 3V with programmable output voltage as low as 0.8V. The RT9025 features ultra low dropout that is ideal for applications where VOUT is very close to VIN. Additionally, it has an enable pin to further reduce power dissipation while shutdown and provides excellent regulation over variations in line, load and temperature. The RT9025 provides a power good signal to indicate if the voltage level of Vo reaches 90% of its rating value. The RT9025 is available in the SOP-8 and SOP-8 (Exposed Pad) package with 1.05V, 1.2V, 1.5V, 1.8V and 2.5V internally preset outputs that are also adjustable by using external resistors.


  • Note Book PC Applications
  • Motherboard Applications
Key Spec.
Status NRND
Recommended Alternative  RT9059
Vin (min) (V) 1.4
Vin (max) (V) 5.5
Vout (min) (V) 0.8
Vout (max) (V) 4
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 2
Iout (max) (mA) 2000
Iq (typ) (uA) 600
Vdropout @ rated current (typ) (mV) 230 @ 2A
Cout Type Ceramic
Features Enable Input;Low Dropout;OCP;Power Good;SCP;Stable with Ceramic Capacitor
Package Type PSOP-8
  • Ultra Low Dropout Voltage 230mV at 2A
  • Output Current up to 2A
  • High Accuracy Output Voltage 2%
  • Power Good Output
  • Output Voltage Pull Low Resistor when Disable
  • Over Current Protection
  • Thermal Shutdown Protection
  • RoHS Compliant and 100% Lead (Pb)-Free
Title Last Update ShareDownload
2A, Ultra Low Dropout LDO 2015/05/19
Additional Documents
Title Last Update ShareDownload
Power Management Introduction and Selection Guide 2019/03/04
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9025-25GSPPSOP-82500 Not available Buy from Distributor