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TI TPS40195RGYR

Manufacturer
TI
MPN
TPS40195RGYR
LCSC Part #
C543013
Packaging
VQFN-16(4x4)
Customer #
Key Attributes
4.5V to 20V synchronous buck controller with synchronization and power-good indication functions
DatasheetTI TPS40195RGYR
RoHS Compliance2 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
In-Stock: 10
10 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 2.0958$ 2.10
10+$ 2.0471$ 20.47
30+$ 2.0147$ 60.44
100+$ 1.9806$ 198.06
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingVQFN-16(4x4)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Hiccup current limiting;Frequency synchronization;Built-in LDO regulator;Operating status indication
Number of Channels1
TopologyBuck
Operating Voltage4.5V~20V
Switch tube (built-in/external)External
Output Voltage-
Operating Temperature-40℃~+85℃
Output Current-
Frequency - Switching100kHz~600kHz
Output TypeAdjustable
FunctionStep-down type
Quiescent Current-
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Introduction

AI Translation

TPS40195 is a flexible synchronous buck controller that operates from a supply voltage rated at 4.5V to 20V. This controller implements voltage-mode control via an adjustable switching frequency ranging from 100kHz to 600kHz. Flexible features of this device include selectable soft-start time, programmable short-circuit limiting, programmable UVLO, and synchronization capability. An adaptive anti-cross-conduction scheme is employed to prevent shoot-through current in the power FETs. Overcurrent detection is achieved by sensing the voltage drop across the low-side MOSFET (when on) and comparing it against a user-programmed threshold. This threshold is set by a single external resistor connected from ILIM to GND. Cycle-by-cycle current limiting (to prevent current runaway) is provided by sensing the voltage across the high-side MOSFET (when on) and terminating the cycle when the voltage drop exceeds a fixed threshold of 550mV. If the controller detects an output short circuit, it shuts down both MOSFETs and attempts a restart after the timeout period expires. This enables limited power dissipation under sustained fault conditions. The synchronization feature on this device is bidirectional. The device can synchronize 180° out of phase to a selected master device TPS40195 (operating at a fixed frequency of 250kHz or 500kHz), or it can synchronize to an external clock source (any frequency within the range of 100kHz to 600kHz).

Features

AI Translation
  • Input operating voltage range: 4.5V to 20V
  • Output voltage as low as 0.591V ±0.5%
  • 180° dual-phase out-of-phase synchronous operation
  • Internal 5V regulator
  • High-side and low-side overcurrent sensing MOSFETs
  • 100kHz to 600kHz switching frequency
  • Enable pin and power-good indication
  • Programmable UVLO with hysteresis
  • Thermal shutdown at 150°C
  • Optional soft-start
  • Pre-biased output protection

Applications

AI Translation
  • Digital TV
  • Entry-level and mid-range servers
  • Network equipment
  • Non-isolated DC/DC modules