Diodes Incorporated


2A Low Noise Step-Down DC-DC Converter

Topologie: Buck
Eingangsspannung (min.): 2.70 V
Eingangsspannung (max.): 5.50 V
Ausgang 1: 1.80 V / 2.000 A
Ausgang 2: 3.30 V / 2.000 A
Ausgang 3: 2.50 V / 2.000 A

Erstveröffentlichung am 28.09.2012, Version 1-0 vom


The PAM2310 is a 2A step-down DC-DC converter. At heavy load, the constant-frequency PWM control performs excellent stability and transient response. No external compensation components are required. The PAM2310 supports a range of input voltages from 2.7V to 5.5V, allowing the use of a single Li+/Li -polymer cell, multiple Alkaline/ NiMH cell,and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The PAM2310 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1μA. Other key features include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. The PAM2310 delivers 2A maximum output current while consuming only 42μA of no-load quiescent current. Ultra-low RDS(ON) integrated MOSFETs and 100% duty cycle operation make the PAM2310 an ideal choice for high output voltage, high current applications which require a low dropout threshold. The PAM2310 is available in SOP-8 package.


  • Output Current: Up to 2A
  • Output Voltage: 0.6V to VIN
  • Input Voltage: 2.7V to 5.5V
  • Peak Efficiency up to 95%
  • 42μA (typ) No Load Quiescent Current
  • Shutdown Current: <1μA
  • 100% Duty Cycle Operation
  • 1.5MHz Switching Frequency
  • Internal Soft Start
  • No external Compensation Required
  • Current Limit Protection
  • Thermal Shutdown
  • SOP-8 PackageRemarks:the value of the inductor will fall in the range of 1μH to 2.7μH.Refer page no.7.


  Artikel Nr. SPEC Produktserie L
RDC typ.
RDC max.
744774022 PDF WE-PD2 SMT-Speicherdrossel 2.2 4.6 8.2 0.026 0.041 54