Integrated Power Supply 1A DC-DC Converter - LM2825

LM2825 (ACTIVE)

Integrated Power Supply 1A DC-DC Converter

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Description

The LM2825 is a complete 1A DC-DC Buck converter packaged in a 24-lead molded Dual-In-Line integrated circuit package.

Contained within the package are all the active and passive components for a high efficiency step-down (buck) switching regulator. Available in fixed output voltages of 3.3V, 5V and 12V, as well as two adjustable versions, these devices can provide up to 1A of load current with fully ensured electrical specifications.

Self-contained, this converter is also fully protected from output fault conditions, such as excessive load current, short circuits, or excessive temperatures.

Features

  • Minimum Design Time Required
  • 3.3V, 5V and 12V Fixed Output Versions
  • Two Adjustable Versions Allow 1.23V to 15V Outputs
  • Wide Input Voltage Range, up to 40V
  • Low-Power Standby Mode, IQ Typically 65 μA
  • High Efficiency, Typically 80%
  • ±4% Output Voltage Tolerance
  • Excellent Line and Load Regulation
  • TTL Shutdown Capability/Programmable Soft-Start
  • Thermal Shutdown and Current Limit Protection
  • −40°C to +85°C Ambient Temperature Range

Highlights

  • No External Components Required (Fixed Output Voltage Versions)
  • Integrated Circuit Reliability
  • MTBF Over 20 Million Hours
  • Radiated EMI Meets Class B Stipulated by CISPR 22
  • High Power Density, 35 W/in3
  • 24-pin PDIP Package Profile (1.25 x 0.54 x 0.26 Inches)

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  LM2825 Compare
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Regulated Outputs (#) 1
Vin (Min) (V) 4.5
Vin (Max) (V) 40
Vout (Min) (V) 3.3
Vout (Max) (V) 15
Iout (Max) (A) 1
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) -
Switch Current Limit (Typ) (A) -
Iq (Typ) (mA) -
Duty Cycle (Max) (%) -
Soft Start -
  • Adjustable
  • Fixed
  • None
Compensation -
  • External
  • Internal
  • Not Needed
Special Features -
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode -
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) -
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -40 to 125 °C to °C
Approx. Price (US$) 18.90 | 1ku
Package Group PDIP
  • CFP
  • DDPAK/TO-263
  • DSBGA
  • DSLGA
  • HTSSOP
  • LQFN-CLIP
  • LSON-CLIP
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • TSSOP
  • USON
  • VQFN
  • VQFN-CLIP
  • VSON
  • VSSOP
  • WQFN
  • WSON
  • XCEPT
  Sample & Buy Reset Update

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