LM2677SD-ADJ/NOPB Semiconductors - ICs by Texas Instruments

IC DC DC CONVERTER

Status: Unknown
Series: -
RoHS: Unknown
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The LM2677 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 5-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low onresistance DMOS power switch. The series consists of fixed output voltages of 3.3-V, 5-V, and 12-V and an adjustable output version. The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. The switching clock frequency can be provided by an internal fixed frequency oscillator (260 kHz) or from an externally provided clock in the range of 280 kHz to 400 kHz, which allows the use of physically smaller-sized components. A family of standard inductors for use with the LM2677 are available from several manufacturers to greatly simplify the design process. The external Sync clock provides direct and precise control of the output ripple frequency for consistent filtering or frequency spectrum positioning. The LM2677 series also has built-in thermal shutdown, current-limiting, and an ON/OFF control input that can power down the regulator to a low 50-μA quiescent-current standby condition. The output voltage is ensured to a ±2% tolerance.
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Specifications

Topology Buck (Step Down)
Input Voltage Min 8V
Input Voltage Max 40V
No. of Outputs 1Outputs
DC / DC Converter IC Case VSON
No. of Pins 14Pins
Output Current 5A
Output Voltage Min 1.2V
Output Voltage Max 37V
Switching Frequency 260kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 2%
Adjustable Output Voltage Min 1.2V
Base Number 2677
Frequency 260kHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 37V
Primary Input Voltage 40V
Supply Voltage Min 8V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down (Buck)

Alternative Descriptions

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync | Texas Instruments

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Frequently Asked Questions

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