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Details for LM2734YQMK/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC DC REG BUCK 1A 550KHZ 6TSOT
LM2734YQMK/NOPB image

LM2734YQMK/NOPB by Texas Instruments

DC DC REG BUCK 1A 550KHZ 6TSOT
Features
0.8-V to 18-V Output Voltage Range
0.8-V, 2% Internal Voltage Reference
1-A Output Current
3.0-V to 20-V Input Voltage Range
30-nA Shutdown Current
300-mu2126 NMOS Switch
550-kHz (LM2734Y) and 1.6-MHz (LM2734X) Switching Frequencies
Current-Mode, PWM Operation
Internal Soft-Start
LM2734XQ and LM2734YQ are AEC-Q100 Grade
Thermal Shutdown
Thin SOT-6 Package
WEBENCHu00ae Online Design Tool
Part Information
LM2734YQMK/NOPB image
RoHS Compliant
Description
The LM2734 regulator is a monolithic, highfrequency, PWM step-down DC-DC converter in a 6pin Thin SOT package. The device provides all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components and online design support through WEBENCH, the LM2734 regulator is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-ofthe-art 0.5-µm BiCMOS technology results in the best power density available. The world-class control circuitry allows for on-times as low as 13 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 550 kHz (LM2734Y) or 1.6 MHz (LM2734X), allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2734 regulator uses current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
3V
Input Voltage Max:
20V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
SOT-23
No. of Pins:
6Pins
Output Current:
1A
Output Voltage Min:
800mV
Output Voltage Max:
18V
Switching Frequency:
660kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Min:
0.8V
Base Number:
2734
Frequency:
550kHz
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Voltage:
18V
Primary Input Voltage:
20V
Supply Voltage Min:
3V
Switch Output Current Isw Max:
2.5A
Termination Type:
Surface Mount Device
Voltage Regulator Type:
Step Down (Buck)
Alternate Descriptions
Conv DC-DC Single Step Down 3V to 20V 6-Pin TSOT T/R Avnet America
Conv DC-DC Single Step Down 3V to 20V 6-Pin TSOT T/R Avnet Europe