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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

型号
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
PM6644TR VDFPN 10 3x3x1.0 Tape And Reel
Active
0.795 10000 EAR99 PHILIPPINES No availability of distributors reported, please contact our sales office Buy now

PM6644TR

Package

VDFPN 10 3x3x1.0

Packing Type

Tape And Reel

Unit Price (US$)

0.795*

Marketing Status

Active

Unit Price (US$)

0.795

Quantity

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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技术文档

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      DS9042
      350 mA adjustable step-down regulator
      1.0
      2.94 MB
      PDF
      DS9042

      350 mA adjustable step-down regulator

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
PM6644TR
Active
VDFPN 10 3x3x1.0 工业 Ecopack2

PM6644TR

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

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.