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  • The PM6644 is a 350 mA valley current limit step-down regulator capable of delivering an adjustable output voltage in the range between 0.9 V and 8 V. A fixed value of output voltage is also available (3.47 V), saving the external resistor divider. It is housed in a small DFN10 3x3 package. The switching regulator is based on COT (constant-on-time) architecture, that assures fast load transient response; the embedded voltage feed-forward provides nearly constant switching frequency operation. The pulse skipping technique increases efficiency at very light load. The switching frequency can be adjusted from 200 kHz to 600 kHz through a simple resistor. The switching regulator can be programmed to regulate a fixed value of 3.47 V or it can deliver an adjustable voltage, depending on the FB pin set-up.

    主要特性

    • 4.5 V to 25 V input voltage range
    • Output voltage VOUT: fixed 3.47 V or adjustable 0.9 V to 8 V
    • 350 mA valley current limit
    • Constant-on-time control
    • Programmable switching frequency
    • Pulse skipping mode (skip mode) at light loads
    • Independent EN signals
    • Latched OVP and UVP

样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
PM6644TR VDFPN 10 3x3x1.0 Tape And Reel
批量生产
0.795 10000 EAR99 PHILIPPINES 没有经销商,请联系我们的销售办事处 立即购买

PM6644TR

封装

VDFPN 10 3x3x1.0

包装类型

Tape And Reel

单价(US$)

0.795*

供货状态

批量生产

单价(US$)

0.795

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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技术文档

    • 描述 版本 文档大小 操作
      DS9042
      350 mA adjustable step-down regulator
      1.0
      2.94 MB
      PDF
      DS9042

      350 mA adjustable step-down regulator

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
PM6644TR
批量生产
VDFPN 10 3x3x1.0 工业 Ecopack2

PM6644TR

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VDFPN 10 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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转换器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.