LM22671MRX-5.0/NOPB Texas Instruments - Yeehing Electronics

SIMPLE SWITCHER® 4.5V to 42V, 500mA Step-Down Voltage Regulator with Adjustable Frequency

Pricing (USD)

Quantity	Unit Price
1 — 99	2.541
100 — 249	2.227
250 — 999	1.561
1,000 +	0.88

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Voltage Regulators
RoHS	Y
Mounting Style	SMD/SMT
Package / Case	SO-PowerPad-8
Output Voltage	5 V
Output Current	500 mA
Number of Outputs	1 Output
Input Voltage MAX	42 V
Topology	Buck
Input Voltage MIN	4.5 V
Switching Frequency	500 kHz, 200 kHz to 1000 kHz
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C
Series	LM22671
Packaging	Reel
Operating Temperature Range	- 40 C to + 125 C
Type	Inverting, Step Down
Brand	Texas Instruments
Development Kit	LM22671EVAL/NOPB
Load Regulation	90 %
Moisture Sensitive	Yes
Operating Supply Current	3.4 mA
Product Type	Switching Voltage Regulators
Factory Pack Quantity	2500
Subcategory	PMIC - Power Management ICs
Supply Voltage - Min	4.5 V
Tradename	SIMPLE SWITCHER

For more information, please refer to datasheet

Documents

LM22671MRX-5.0/NOPB Datasheet

More Information

The LM22671 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 capable of providing up to 500 mA 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 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 (typ). An adjustable soft-start feature is provided through the selection of a single external capacitor. The LM22671 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.