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The RT8015A is a high efficiency synchronous, step-down DC/DC converter. Its input voltage range is from 2.6V to 5.5V and provides an adjustable regulated output voltage from 0.8V to 5V while delivering up to 3A of output current.
The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is set by an external resistor or can be synchronized to an external clock. The 100% duty cycle provides low dropout operation extending battery life in portable systems. Current mode operation with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors.
The RT8015A is operated in forced continuous PWM Mode which minimizes ripple voltage and reduces the noise and RF interference.
The 100% duty cycle in Low Dropout Operation further maximize battery life.
The RT8015A is available in the WDFN-10L 3x3 package.

Applications

  • Portable Instruments
  • Battery-Powered Equipment
  • Notebook Computers
  • Distributed Power Systems
  • IP Phones
  • Digital Cameras
Key Spec.
RT8015A
Status Active
Vin (min) (V) 2.6
Vin (max) (V) 5.5
Number of Outputs 1
Vout (min) (V) 0.8
Vout (max) (V) 5
Output Adj. Method Resistor
Iout (max) (A) 3
Current Limit (typ) (A) 3.8
Freq (typ) (kHz) 1000
Freq (min) (kHz) 300
Freq (max) (kHz) 2000
Ext Sync No
Ron_HS (typ) (mOhm) 110
Ron_LS (typ) (mOhm) 110
Iq (typ) (mA) 0.46
Features 100% Duty Cycle;Adjustable Frequency;Current Mode Control;Force PWM;OCP;Stable with Ceramic Capacitor;UVP
Package Type WDFN3x3-10
Features
  • High Efficiency : Up to 95%
  • Low RDS(ON) Internal Switches : 110mΩ
  • Programmable Frequency : 300kHz to 2MHz
  • No Schottky Diode Required
  • 0.8V Reference Allows for Low Output Voltage
  • Forced Continuous Mode Operation
  • Low Dropout Operation : 100% Duty Cycle
  • RoHS Compliant and 100% Lead (Pb)-Free
Datasheet
TitleLast UpdateDownload
3A, 2MHz, Synchronous Step-Down Converter2008/02/05
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Richtek Featured Product Tree [Aug., 2023] Selection Guide2023/08/07
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT8015AGQWWDFN3x3-101500 Request Buy from Distributor
RT8015AGQWWDFN3x3-102500 Request Buy from Distributor
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