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Details for LM20143MHE/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC/DC CONV SYNC BUCK 1.5MHZ HTSSOP-16
LM20143MHE/NOPB image

LM20143MHE/NOPB by Texas Instruments

DC/DC CONV SYNC BUCK 1.5MHZ HTSSOP-16
Features
32-mu2126 Integrated FET Switches
97% Peak Efficiency
Accurate Current Limit Minimizes Inductor Size
Adjustable Output Voltage Down to 0.80 V
Adjustable Soft-Start with External Capacitor
Adjustable Switching Frequency (500 kHz to 1.5 MHz)
Available in AEC-Q100 Temperature Grade 1
Input Voltage Range: 2.95 V to 5.50 V
Integrated OVP, UVLO, Power Good and Thermal
Output Voltage Tracking
Peak Current Mode Control
Precision Enable Pin with Hysteresis
Starts into Prebiased Loads
Part Information
LM20143MHE/NOPB image
RoHS Compliant
Description
The LM20143 devices are full featured PowerWise™ adjustable frequency synchronous buck regulators capable of delivering up to 3 A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95 V to 5.5 V, making it suited for a wide variety of low voltage systems. The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing is possible with the integrated power good circuit. The frequency of this device can be adjusted from 500 kHz to 1.5 MHz by connecting an external resistor from the RT pin to ground. The LM20143 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20143 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.
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:
16Pins
Output Current:
3A
Output Voltage Min:
800mV
Output Voltage Max:
5V
Switching Frequency:
1.5MHz
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
DC/DC CONV, SYNC BUCK, 1.5MHZ, HTSSOP-16; 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:16Pins; Output Current:3A; RoHS Compliant: Yes Newark Electronics
Conv DC-DC Single Step Down 2.95V to 5.5V 16-Pin TSSOP EP T/R Avnet America
Conv DC-DC Single Step Down 2.95V to 5.5V 16-Pin TSSOP EP T/R Avnet Europe