RT8580
RT8580 is 36V DC/DC Boost Converter manufactured by Richtek.
Description
The RT8580 is a high performance, low noise, DC/DC Boost Converter with an integrated 0.5A, 1Ω internal switch. The RT8580's input voltage ranges from 3V to 5.5V, and it can support the output voltage up to 40V. When used in optical receiver applications requiring 80V to drive the APD (Avalanche Photo Diode), the output voltage of RT8580 can be doubled up by a typical voltage doubler circuit. The RT8580 adapts fixed frequency, current mode PWM control loop to regulate the output voltage with fast transient response and cycle-by-cycle current limit protection. The protection features of RT8580 include : 1) input undervoltage lockout, 2) output over-voltage protection, and 3) over-temperature protection. The soft-start function and PWM loop pensation is built-in internally to save external soft-start capacitor and PWM loop pensation ponents. By operating at 500k Hz switching frequency, the RT8580 system board can be made pact to achieve low system BOM cost. The RT8580 is available in the tiny package type SOT-23-6.
Marking Information
0E=DNN
0E= : Product Code DNN : Date Code
Features z Input Operating Range : 3V to 5.5V z Wide Output Range : VCC to 40V z Internal Power N-MOSFET Switch z 500k Hz Fixed Switching Frequency z Minimize the External ponent Counts z Internal Soft-Start z Internal pensation z Under-Voltage Lockout Protection z Over-Temperature Protection z Ro HS pliant and Halogen Free
Applications z Cellular Phones z Digital Cameras z Portable Instruments z Avalanche Photodiode Biasing
Ordering Information
RT8580 Package Type E : SOT-23-6 Lead Plating System G : Green (Halogen Free and Pb Free)
Note : Richtek products are :
` Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.
` Suitable for use in Sn Pb or Pb-free soldering processes.
Simplified Application Circuit
VIN C1
L1
SHDN GND PGND
D1 R1 R2
VOUT C2
Copyright ©2013 Richtek Technology Corporation. All rights reserved. DS8580-00 August...
