LM2734ZMK/NOPB Part Information

Details for LM2734ZMK/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The LM2734Z regulator is a monolithic, highfrequency, PWM step-down DC–DC converter assembled in a thick 6-pin SOT and a WSON nonpullback 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 LM2734Z is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-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 3 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 85% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2734Z uses currentmode 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.

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Part Features

  • 0.8-V to 18-V Output Voltage Range
  • 0.8-V, 2% Internal Voltage Reference
  • 1-A Output Current
  • 3-MHz Switching Frequency
  • 3.0-V to 20-V Input Voltage Range
  • 30-nA Shutdown Current
  • 300-mu2126 NMOS Switch
  • 6-pin SOT Package, or 6-Pin WSON Package
  • AEC-Q100 Qualified With the Following Results: u2013 Device Temperature Grade 1: u201340u00b0C to 125u00b0C Ambient Operating Temperature Range u2013 Device HBM ESD Classification Level 2 u2013 Device CDM ESD Classification Level C6
  • Current-Mode, PWM Operation
  • Internal Soft-Start
  • Qualified for Automotive Applications
  • Thermal Shutdown

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 3V
Input Voltage Max 20V
No. of Outputs 1Outputs
DC / DC Converter IC Case TSOT
No. of Pins 6Pins
Output Current 1A
Output Voltage Min 800mV
Output Voltage Max 18V
Switching Frequency 3MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • 1A 3-20V DC-DC Buck Regulator TSOT23-6 | RS Components
  • STEP-DOWN DC/DC REGULATOR, TSOT-6; Topology:Buck (Step Down); Input Voltage Min:3V; Input Voltage Max:20V; No. of Outputs:1Outputs; DC / DC Converter IC Case:TSOT; No. of Pins:6Pins; Output Current:1A; Output Voltage Min:800mV RoHS Compliant: Yes | Newark Electronics
  • 3 to 20 V input, 1 A, high frequency step-down converter with light load efficiency | Texas Instruments
  • Texas Instruments LM2734ZMK/NOPB DC-DC Dönüştürücüsü Step-Down, 6-Pinli SOT-23 | RS Components TR
  • Texas Instruments,LM2734ZMK/NOPB,DC-DC | RS Components IT

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