TPS65262-2RHBT Part Information

Details for TPS65262-2RHBT by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The TPS65262-2 is a monolithic triple synchronous step-down (buck) converter with 3-A/1-A/1-A output current. A wide 4.5- to 18-V input supply voltage range encompasses the most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates at 600-kHz fixed switching frequency. The loop compensations for buck 2 and buck3 have been integrated for less external components. The 180° out-of-phase operation between buck1 and buck2, 3 (buck2 and buck3 run in phase) minimizes the input filter requirements. The TPS65262-2 operates in pulse skipping mode (PSM) with connecting MODE pin to GND and operates in force continuous current mode (FCC) with driving MODE pin to high or leaving float. PSM mode provides high efficiency by reducing switching losses at light load and FCC mode reduces noise susceptibility and RF interference. Two low dropout voltage linear regulators (LDO) are also built in TPS65262-2 with input voltage range 1.3 to 18 V, continuous output current 350 mA/150 mA, independent enable and adjustable output voltage. A power-good pin asserts when any output voltages are out of regulation.

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Part Features

  • 32-Pin VQFN (RHB) 5-mm u00d7 5-mm Package
  • Dedicated Enable Pins for Each Buck
  • Feedback Reference Voltage: 0.6 V u00b11%
  • Fixed 1-ms Soft-Start Time for Buck2 and Buck3
  • Fixed 600-kHz Switching Frequency
  • Integrated Dual LDOs With Input Voltage Range: 1.3 to 18 V and Continuous Output Current: 350 mA/150 mA
  • Internal Loop Compensation for Buck2 and Buck3
  • Maximum Continuous Output Current: 3 A/1 A/1 A
  • Operating Input Voltage Range: 4.5 to 18 V
  • Output Voltage Power-Good Indicator
  • Overvoltage Protection, Overcurrent and Short-
  • Programmable Soft Start Time for Buck1
  • Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
  • Thermal Overloading Protection

Part Specifications

Input Voltage Min 4.5V
Input Voltage Max 18V
No. of Outputs 3 Output, 3Outputs
DC / DC Converter IC Case VQFN
No. of Pins 32Pins
Output Current - Output 1 3A
Output Current - Output 2 1A
Output Voltage - Output 1 -
Output Voltage - Output 2 -
Regulator Output Type Adjustable
Switching Frequency 600kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • 4.5V-18V Vin, 3A/1A/1A Triple Synchronous Buck Converter with 350mA/150mA Dual LDOs | Texas Instruments

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