LM34917ATL/NOPB Texas Instruments - Yeehing Electronics

2.3x2mm, 8-33V, 1.25A, Constant On-Time Non-Synchronous Buck Regulator w/ Intelligent Current Limit

Pricing (USD)

Quantity	Unit Price
1 — 99	2.64
100 — 249	2.313
250 — 999	1.622
1,000 +	0.91

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Voltage Regulators
RoHS	Y
Mounting Style	SMD/SMT
Package / Case	DSBGA-12
Output Voltage	2.5 V to 30 V
Output Current	1.25 A
Number of Outputs	1 Output
Input Voltage MAX	33 V
Topology	Buck
Input Voltage MIN	8 V
Switching Frequency	1600 kHz to 2600 kHz
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C
Series	LM34917A
Packaging	Reel
Operating Temperature Range	- 40 C to + 125 C
Type	Step Down
Brand	Texas Instruments
Development Kit	LM34917AEVAL
Operating Supply Current	680 uA
Product Type	Switching Voltage Regulators
Factory Pack Quantity	250
Subcategory	PMIC - Power Management ICs
Supply Voltage - Min	8 V

For more information, please refer to datasheet

Documents

LM34917ATL/NOPB Datasheet

More Information

The LM34917A Step-Down Switching Regulator features all the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying at least 1.25A to the load. To reduce excessive switch current due to the possibility of a saturating inductor the valley current limit threshold changes with input and output voltages, and the on-time is reduced when current limit is detected. This buck regulator contains an N-Channel Buck Switch, and is available in the 12 pin DSBGA package. The constant on-time feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lock-out, input over-voltage shutdown, thermal shutdown, gate drive under-voltage lock-out, and maximum duty cycle limit.