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TI LM22670MRX-ADJ/NOPB product image
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TI LM22670MRX-ADJ/NOPBRoHS

Manufacturer
TI
MPN
LM22670MRX-ADJ/NOPB
LCSC Part #
C123128
Packaging
SOIC-8-EP
Customer #
Key Attributes
Wide Input Voltage Range Step-Down Switching Regulator
Datasheetpdf iconTI LM22670MRX-ADJ/NOPB
In-Stock: 3,089
3,089 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.2924$ 2.29
10+$ 1.931$ 19.31
30+$ 1.7047$ 51.14
100+$ 1.4214$ 142.14
500+$ 1.3172$ 658.60
1,000+$ 1.2716$ 1271.60
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingSOIC-8-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching500kHz
FunctionStep-down type
Number of Outputs1
FeaturesFrequency synchronization;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~42V
Switch tube (built-in/external)Built-in
Output Voltage1.285V~37V
Output Current3A
Quiescent Current3.4mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LM22670 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 3 A of load current. Excellent line and load regulation along with high efficiency (>90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. The default switching frequency is set at 500 kHz, thus allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 μA (typical). Built in soft-start (500 μs, typical) saves external components. The LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

Features

AI Translation
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control Stable With Low ESR Ceramic Capacitors
  • 120-mΩ N-channel MOSFET PFM Package
  • 100-mΩ N-channel MOSFET SO PowerPAD-8 Package
  • Output Voltage Options: -ADJ (Outputs as Low as 1.285 V), -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • 500-kHz Default Switching Frequency
  • Adjustable Switching Frequency and Synchronization
  • -40°C to 125°C Operating Junction Temperature Range
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBEN Γ(CH⊕ Enabled
  • LM22670-Q1 is an Automotive-Grade Product that is AEC-Q100 Grade 1 Qualified (-40°C to +125°C Operating Junction Temperature)

Applications

AI Translation
  • Industrial Control
  • Telecom and Datacom Systems
  • Embedded Systems
  • Conversions from Standard 24-V, 12-V and 5-V Input Rails