STMicroelectronics L6727
L6727 is a single-phase step-down controller with integrated high-current drivers that provides complete control logic, protections and reference voltage to realize in an easy and simple way general DC-DC converters by using a compact SO-8 package. The integrated 0.8 V reference allows regulating output voltages with ±1 % accuracy over line and temperature variations. L6727 provides simple control loop with voltagemode error-amplifier.| Part No. | L6727 |
|---|---|
| Datasheet | L6727 Download |
| Manufacturer |  STMicroelectronics |
| Description | Single phase PWM controller |
| Buy | Stock & Price |
APPLICATIONS
● Subsystem power supply (MCH, IOCH, PCI...)● Memory and termination supply
● CPU and DSP power supply
● Distributed power supply
● General DC / DC converters SO-8
DESCRIPTION
Device flexibility allows managing conversions with power input VIN as low as 1.5 V and device supply voltage in the range of 5 V to 12 V. Oscillator is internally fixed to 300 kHz. L6727 provides programmable over current protection as well as over and under voltage protection. Current information is monitored across the low-side MOSFET RdsON saving the use of expensive and space-consuming sense resistors while output voltage is monitored through FB pin. Table 1. Device summary FB disconnection protection prevents excessive and dangerous output voltages in case of floating FB pin. Order codes Package Packaging L6727 L6727TR SO-8 Tube Tape and reel March 2010 Doc ID 12933 Rev 4 1/34 34 Contents Contents L6727 1 Typical application circuit and block diagram . . . . . . . . . . . . . . . . . . . . 4 1.1 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
