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Details for LM22677TJE-5.0/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
LM22677TJE-5.0/NOPB
Buy Directly from Texas Instruments (3059 in stock) $2.5300
IC STEP-DOWN REGULATOR TO-263-7
LM22677TJE-5.0/NOPB image

LM22677TJE-5.0/NOPB by Texas Instruments

IC STEP-DOWN REGULATOR TO-263-7
Features
100-mu03a9 N-Channel MOSFET
500-kHz Default Switching Frequency
Adjustable Switching Frequency and Synchronization
Fully WEBENCHu00ae Enabled
Integrated Boot-Strap Diode
Integrated Soft-Start
Internally Compensated Voltage Mode Control
LM22677-Q1 is an Automotive-Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Operating Junction Temperature)
NDR (Exposed Pad)
Output Voltage Options: u2013 -ADJ (Outputs as Low as 1.285 V) u2013 -5.0 (Output Fixed to 5 V)
Precision Enable Input
Stable With Low ESR Ceramic Capacitors
Wide Input Voltage Range: 4.5 V to 42 V
u00b11.5% Feedback Reference Accuracy
u201340u00b0C to +125u00b0C Operating Junction Temperature Range
Part Information
LM22677TJE-5.0/NOPB image
RoHS Compliant
Description
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.
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)
Alternate Descriptions
SIMPLESWITH, 5.0A 4.5~42VIN, 7TO263; 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; RoHS Compliant: Yes Newark Electronics
Conv DC-DC Single Step Down 4.5V to 42V 7-Pin Thin TO-263 EP T/R Avnet America
Conv DC-DC Single Step Down 4.5V to 42V 7-Pin Thin TO-263 EP T/R Avnet Europe
SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down DC/DC Switching Reg. with Frequency Synchronization Texas Instruments