Datasheet Alpha & Omega AOZ6682CI — Даташит

AOZ6682CI EZBuckTM 2A Synchronous Buck Regulator General Description Features The AOZ6682CI is a high efficiency, easy to use, 2A
synchronous buck regulator at high switching frequency
for small form factor solution. The AOZ6682CI works
from 4.5V to 18V input voltage range, and provides up to
2A of continuous output current with an output voltage
adjustable down to 0.8V. 4.5V to 18V operating input voltage range The AOZ6682CI comes in an ultra thin TSOT23-6L
package and is rated from -40°C to +125°C junction
temperature range. Output voltage adjustable to 0.8V Synchronous Buck: 125mΩ internal high-side switch and 55mΩ internal low-side switch Up to 95% efficiency Pulse energy mode for high light load efficiency (Vin=12V, Vo=5V, 89% @10mA) 2A continuous output current 750kHz PWM operation Internal compensation Internal Soft Start Cycle-by-cycle current limit Pre-bias start-up Short-circuit protection Thermal shutdown Ultra-thin TSOT23-6L package Applications General Point of Load LCD TV Cable modems and Gateway Typical Application
VIN VIN 4.5V ~ 18V BST CIN CBST V IN AOZ6682CI
V IN 4 .5 V ~ 1 8 V LX C IN C BST A O Z6682C I EN LX EN
EN FB EGND
N
GND L1 BST VOUT
L1 R1 RT
RT VOUT R1 FB R2 R2 CO CO Figure 1. 2A Synchronous Buck Regulator Rev. 1.0 December 2018 www.aosmd.com Page 1 of 14 AOZ6682CI
Ordering Information
Part Number Ambient Temperature Range Package Environmental AOZ6682CI -40°C to +125°C TSOT23-6L RoHS AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information. Pin Configuration
GND LX VIN 1 6 BST 2 5 EN 3 4 FB TSOT23
(Top View) Pin Description
Pin Number Pin Name 1 GND 2 LX Switching node connects to main inductor terminal. 3 VIN Supply voltage input. When VIN rises above the UVLO threshold and EN is logic high, the
device will start up. 4 FB Feedback input. The FB pin is used to set the output voltage through a resistor voltage
divider between the Output and GND. 5 EN Enable input. Pull EN to logic high will enable the device. Pull EN to logic low will disable …