LM22677TJE-5.0/NOPB Semiconductors - ICs by Texas Instruments

IC STEP-DOWN REGULATOR TO-263-7

Semiconductors - ICs

> Power Management ICs - PMIC

> Voltage Regulators

> DC / DC Fixed Switching Regulators

Status:	Unknown
Series:	-
RoHS:	Unknown

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The LM22677 switching regulator provides all of the functions necessary to implement an efficient highvoltage 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 5 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). The LM22677 also has built-in thermal shutdown, and current limiting to protect against accidental overloads. The LM22677 device is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy-touse complete design using a minimum number of external components and the TI WEBENCH design tool. TI's WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

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Specifications

Topology	Buck (Step Down)
Input Voltage Min	4.5V
Input Voltage Max	42V
DC / DC Converter IC Case	TO-263
No. of Pins	7Pins
Output Current	5A
Output Voltage Nom.	5V
Switching Frequency	1MHz
Operating Temperature Max	125°C
Product Range	-
Automotive Qualification Standard	-
RoHS Phthalates Compliant	Yes
MSL	MSL 1 - Unlimited
SVHC	No SVHC (27-Jun-2018)
Base Number	22677
Frequency	500kHz
No. of Outputs	1Outputs
Operating Temperature Min	-40°C
Operating Temperature Range	-40°C to +125°C
Output Voltage	5V
Primary Input Voltage	12V
Supply Voltage Max	42V
Supply Voltage Min	8V
Termination Type	Surface Mount Device
Voltage Regulator Type	Step Down (Buck)

Alternative Descriptions

Simpleswith, 5.0A 4.5~42Vin, 7To263 | Newark Electronics

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