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HTSSOP (PWP)
Integrated Circuits (ICs)

LM20133MHX/NOPB

Active
Texas Instruments

2.95-5.5V, 3A, CURRENT MODE SYNCHRONOUS BUCK REGULATOR WITH INPUT SYNC AND OPTIONAL AUTOMOTIVE GRADE

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Search across all available documentation for this part.

DocumentsPower Management Guide 2018 (Rev. R)AN-1747 3A LM20k Reference Designs (Rev. A)+4
HTSSOP (PWP)
Integrated Circuits (ICs)

LM20133MHX/NOPB

Active
Texas Instruments

2.95-5.5V, 3A, CURRENT MODE SYNCHRONOUS BUCK REGULATOR WITH INPUT SYNC AND OPTIONAL AUTOMOTIVE GRADE

Deep-Dive with AI

DocumentsPower Management Guide 2018 (Rev. R)AN-1747 3A LM20k Reference Designs (Rev. A)+4

Technical Specifications

Parameters and characteristics for this part

SpecificationLM20133MHX/NOPB
Current - Output3 A
Frequency - Switching410 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 ¯C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case16-PowerTSSOP
Package / Case0.173 in, 4.4 mm Width
Supplier Device Package16-HTSSOP
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]5.5 V
Voltage - Input (Min) [Min]2.95 V
Voltage - Output (Max) [Max]4.68 V
Voltage - Output (Min/Fixed)0.8 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 2500$ 1.63
5000$ 1.56
Texas InstrumentsLARGE T&R 1$ 2.44
100$ 2.14
250$ 1.50
1000$ 1.21

Description

General part information

LM20133 Series

The LM20133 is a full featured synchronous buck regulator capable of delivering up to 3A 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 2.95V to 5.5V 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 switching frequency of the LM20133 can be synchronized to an external clock by use of the SYNC pin. The SYNC pin is capable of synchronizing to input signals ranging from 500 kHz to 1.5 MHz.