PT1206

High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator GENERAL DESCRIPTION The PT1206 is a high efficiency 1.5MHz synchronous step-down DC-DC regulator IC capable of delivering up to 1A current. The PT1206 operates over a wide input voltage range from 2.5V to 6V; the main switch and the synchronous switch have been integrated with very low RDS(ON) to minimize the conduction loss. Low output voltage ripples with small external inductor and capacitor size are achieved with 1.5MHz switching frequency.       PT1206 FEATURES  Low RDS(ON) for internal switches (top/bottom) 250mΩ/200mΩ 2.5V~6.0V input voltage range 1.5MHz switching frequency minimizes the external components Internal soft-start limits the inrush current 100% duty-cycle operation RoHS compliant APPLICATIONS      Portable Navigation Device Smart phone USB Dongle Set Top Box Media Player ORDERING INFORMATION PACKAGE SOT23-5 TEMPERATURE RANGE -40° C to 85° C ORDERING PART NUMBER PT1206E23F TRANSPORT MEDIA Tape and Reel 3000 units MARKING 1206 TYPICAL APPLICATION CIRCUIT ON/OFF VIN CIN EN IN LX L R1 R2 C1(opt.) VOUT COUT PT1206 FB GND China Resources Powtech (Shanghai) Limited PT1206_DS Rev EN_1.1 WWW.CRPOWTECH.COM Page 1 High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator PIN ASSIGNMENT EN 1 5 FB PT1206 GND 2 1206 4 IN LX 3 SOT23-5 PIN DESCRIPTIONS PIN 1 2 3 4 5 SYMBOL EN GND LX IN FB DESCRIPTION Enable control. Pull high to turn on. Do not float. Ground pin Inductor pin. Co...