LM2831ZMF/NOPB

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Details for Texas Instruments

LM2831ZMF/NOPB

High Frequency 1.5A Load - Step-Down DC-DC Regulator
Buy Directly from Texas Instruments (5410 in Stock)
$0.7000 per unit
Series Information for LM2831ZMF/NOPB - Texas Instruments

Features

  • feature
    0.6-V, 2% Internal Voltage Reference
  • feature
    1.5-A Output Current
  • feature
    130-mu2126 PMOS Switch
  • feature
    Current Mode, PWM Operation
  • feature
    High Switching Frequencie u2013 1.6 MHz (LM2831X) u2013 0.55 MHz (LM2831Y) u2013 3 MHz (LM2831Z)
  • feature
    Input Voltage Range of 3 V to 5.5 V
  • feature
    Internal Soft Start
  • feature
    Output Voltage Range of 0.6 V to 4.5 V
  • feature
    Overvoltage Protection
  • feature
    Space-Saving SOT-23 Package
  • feature
    Thermal Shutdown

Description

DC/DC CONV BUCK 3.75MHZ SOT-23-5
The LM2831 regulator is a monolithic, highfrequency, PWM step-down DC-DC converter in a 5pin SOT-23 and a 6-Pin WSON package. The LM2831 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, the LM2831 is easy to use. The ability to drive 1.5-A loads with an internal 130-mΩ PMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30 ns, thus supporting exceptionally high frequency conversion over the entire 3 V to 5.5 V input operating range, down to the minimum output voltage of 0.6 V. Switching frequency is internally set to 550 kHz, 1.6 MHz, or 3 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies of up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2831 utilizes 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:
5.5V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
SOT-23
No. of Pins:
5Pins
Output Current:
1.5A
Output Voltage Min:
600mV
Output Voltage Max:
4.5V
Switching Frequency:
3.75MHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 3V to 5.5V 5-Pin SOT-23 T/R

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 3V to 5.5V 5-Pin SOT-23 T/R

Avnet Europe product

Texas Instruments

High Frequency 1.5A Load - Step-Down DC-DC Regulator

Texas Instruments product