LM21215AMHE-1/NOPB

Electronic & Electrical Components

> Semiconductors - ICs

> Power Management

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Series Information for LM21215AMHE-1/NOPB - Texas Instruments

Features

  • feature
    Accurate u00b11% Internal Voltage Reference
  • feature
    Automatic Diode Emulation Mode for Improved Efficiency at Light Loads
  • feature
    Frequency Synchronization 300 kHz to 1.5 MHz
  • feature
    High-Efficiency Synchronous DC-DC Converter u2013 Input Voltage Range of 2.95 V to 5.5 V u2013 Adjustable Output Voltage From 0.6 V to VIN u2013 Output Current as High as 15 A
  • feature
    Integrated 4.3-mu2126 NMOS Synchronous Rectifier Eliminates Schottky Diode
  • feature
    Integrated 7-mu2126 PMOS Buck Switch Supports 100% Duty Cycle for Low Dropout Voltage
  • feature
    Integrated OVP, UVP, OCP and UVLO
  • feature
    Internal 0.5-ms or Externally Adjustable Soft-Start
  • feature
    Monotonic Pre-Biased Startup
  • feature
    Open-Drain Power Good Indicator
  • feature
    Output Voltage Tracking Capability
  • feature
    Precision Enable with Hysteresis
  • feature
    Thermal Shutdown Protection With Hysteresis
  • feature
    Thermally-Enhanced HTSSOP-20 Package
  • feature
    Ultra-Fast Line and Load Transient Response u2013 Voltage-Mode PWM Control u2013 Wide-Bandwidth Voltage Loop Error Amplifier

Description

DC/DC CONV SYNC BUCK 500KHZ HTSSOP-20
The LM21215A is a synchronous buck DC-DC converter that delivers up to 15 A of output current at output voltages as low as 0.6 V. Operating over an input voltage range of 2.95 V to 5.5 V with ultra-high efficiency, the LM21215A suits a wide variety of low voltage systems. The voltage-mode control loop with high gain-bandwidth error amplifier provides high noise immunity, narrow duty cycle capability and is easily compensated for stable operation with any type of output capacitor, providing maximum flexibility and ease of use. The LM21215A features internal overvoltage protection (OVP) and cycle-by-cycle overcurrent protection (OCP) for increased system reliability. A precision enable pin and integrated UVLO allow turnon of the device to be tightly controlled and sequenced. Startup inrush currents are limited by an internally-fixed or externally-adjustable soft-start circuit. An integrated open-drain PGOOD indicator provides fault reporting and supply sequencing. Other features include auxiliary voltage rail tracking, monotonic startup into pre-biased loads, and switching frequency synchronization to an external clock signal between 300 kHz and 1.5 MHz for beatfrequency sensitive and multi-regulator applications. The LM21215A is offered in a thermally-enhanced 20-pin HTSSOP package with an exposed pad that is soldered to the PCB to achieve a very low junction-toboard thermal impedance.

Specifications

Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
2.95V
Input Voltage Max:
5.5V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
HTSSOP
No. of Pins:
20Pins
Output Current:
15A
Output Voltage Min:
600mV
Output Voltage Max:
5.5V
Switching Frequency:
500kHz
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 2.95V to 5.5V 20-Pin TSSOP EP T/R

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 2.95V to 5.5V 20-Pin TSSOP EP T/R

Avnet Europe product