參數(shù)資料
型號: PM6675TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, QCC24
封裝: 4 X 4 MM, VFQFPN-24
文件頁數(shù): 6/50頁
文件大?。?/td> 782K
代理商: PM6675TR
Device description
PM6675
14/47
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Device description
The PM6675 combines a single high efficiency step-down controller and an independent
Low Drop-Out (LDO) linear regulator in the same package.
The switching controller section is a high-performance, pseudo-fixed frequency, Constant-
On-Time (COT) based regulator specifically designed for handling fast load transient over a
wide range of input voltages.
The switching section output can be easily set to a fixed 1.5V voltage without additional
components or adjusted in the 0.6V to 3.3V range using an external resistor divider. The
Switching Mode Power Supply (SMPS) can handle different modes of operation in order to
minimize noise or power consumption, depending on the application needs. Selectable low-
consumption and low-noise modes allow the highest efficiency and a 33kHz minimum
switching frequency respectively at light loads.
A loss less current sensing scheme, based on the Low-Side MOSFET's turn-on resistance,
avoids the need for an external sensing resistor.
The input of the LDO can be either the switching section output or a lower voltage rail in
order to reduce the total power dissipation. Linear regulator stability is achieved by filtering
its output with a ceramic capacitor (20
F or greater). The LDO linear regulator can sink and
source up to 2Apk.
Two fixed current limit (±1A-±2A) can be chosen.
An active Soft-End is independently performed on both the switching and the linear
regulators outputs when disabled.
相關(guān)PDF資料
PDF描述
PM6675 SWITCHING CONTROLLER, QCC24
PM6680ATR 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6680A 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6680TR 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
PM6685TR DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
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