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TPS53667RTAR

Texas Instruments · DC-DC Controllers · WQFN-40-EP(6x6)

TPS53667RTAR from Texas Instruments, in a WQFN-40-EP(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OCL-R input A resistor to GND and the voltage level select 1 of 16 per-phase OCL levels and one of four RAMP levels, latched when V3R3 powers up.
2 IMON output Analog current monitor output.
3 CSP1 input Positive current sense input for phase 1; connect to the IOUT pin of TI smart power stages (e.g. CSD9549x).
4 CSP2 input Positive current sense input for phase 2; tie to V3R3 per Table 3 to disable the phase.
5 CSP3 input Positive current sense input for phase 3; tie to V3R3 per Table 3 to disable the phase.
6 CSP4 input Positive current sense input for phase 4; tie to V3R3 per Table 3 to disable the phase.
7 CSP5 input Positive current sense input for phase 5; tie to V3R3 per Table 3 to disable the phase.
8 CSP6 input Positive current sense input for phase 6; tie to V3R3 per Table 3 to disable the phase.
9 VSP input Positive input of the remote voltage sense amplifier; connect directly to the load.
10 VSN input Negative input of the remote voltage sense amplifier; connect directly to the GND of the load.
11 COMP output Output of the gM error amplifier; resistors and capacitors between this pin and VREF set the compensation.
12 ISUM output A resistor between this pin and VREF determines the droop.
13 VREF power_out 1.7-V, 500-µA LDO reference voltage; bypass to GND with 0.33 µF ceramic and connect to REFIN of TI smart power stages.
14 V3R3 power_out 3.3-V LDO output; bypass to GND with a ceramic capacitor of 1 µF or larger.
15 V5 power_in 5-V power input (4.5 V to 5.5 V) powering all internal analog circuits; bypass to GND with 1 µF or larger ceramic capacitor.
16 VIN power_in Input voltage supply, also used for input voltage sensing for on-time control and input UVLO.
17 GND power_in Ground pin.
18 VR_RDY output Open-drain power good output, typically pulled up to V3R3 through 3 kΩ or larger.
19 VR_HOT output Active-low open-drain thermal flag output, typically pulled up to V3R3 through 3 kΩ or larger; leave floating if not used.
20 GND power_in Connect this pin to GND; note this is not the IC ground pin.
21 RESET input Reset pin; if low for more than 1000 ns the controller pulls the output voltage to the VBOOT level.
22 GND power_in Connect this pin to GND; note this is not the IC ground pin.
23 ENABLE input VR enable input with 1-V I/O level and 100-ns debounce.
24 PMB_CLK input I2C PMBus clock, 3.3-V and 1.8-V logic level.
25 PMB_ALERT output Open-drain I2C PMBus interrupt line, 3.3-V and 1.8-V logic level.
26 PMB_DIO bidirectional I2C PMBus digital I/O line, 3.3-V and 1.8-V logic level.
27 VR_FAULT output Open-drain VR fault indicator that is LOW on failure, typically pulled up to V3R3 through 3 kΩ or larger; leave floating if not used.
28 ADDR-TRISE input Voltage divider to VREF; resistor to GND sets 3 bits (rise slew rate and boot voltage LSB) and the voltage sets the 4-bit PMBus address, latched when V3R3 powers up.
29 SLEW-MODE input Voltage divider to VREF; resistor to GND sets 1 of 8 slew rates and the voltage sets the operation modes, latched when V3R3 powers up.
30 O-USR input Voltage divider to VREF; resistor to GND selects 1 of 7 OSR thresholds or OFF and the voltage selects 1 of 7 USR levels or OFF, latched when V3R3 powers up.
31 VBOOT input Voltage divider to VREF; resistor to GND sets boot VID bits B[3:1] and the voltage sets B[7:4], latched when V3R3 powers up.
32 F-IMAX input Voltage divider to VREF; resistor to GND sets the operating frequency and the voltage sets IMAX (VVREF × IMAX / 255), latched at V3R3 power-up.
33 PWM6 output PWM signal output for phase 6.
34 PWM5 output PWM signal output for phase 5.
35 PWM4 output PWM signal output for phase 4.
36 PWM3 output PWM signal output for phase 3.
37 PWM2 output PWM signal output for phase 2.
38 PWM1 output PWM signal output for phase 1.
39 SKIP-NVM output A resistor to GND sets pinstrap or NVM configuration mode; can also connect to the FCCM pin of TI smart power stages for SKIP or FCCM operation.
40 TSEN input Connect to the TAO/FAULT pin of TI smart power stages to sense the highest power stage temperature and the power stage fault signal.
41 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WQFN-40-EP(6x6)
Category Power Management ICs
Pins 41

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN input voltage (abs max) VIN -0.3 19 V 5
V5 input voltage (abs max) V5 -0.3 6 V 5
TSEN input voltage (abs max) TSEN -0.3 6 V 5
Logic/sense input voltage (abs max) -0.3 3.6 V ADDR-TRISE, CSP1-6, ENABLE, F-IMAX, OCL-R, O-USR, PMB_CLK, PMB_DIO, RESET, SLEW-MODE, VBOOT, VSP 5
GND, VSN voltage (abs max) -0.3 0.3 V 5
VREF output voltage (abs max) VREF -0.3 1.8 V 5
Output pins voltage (abs max) -0.3 3.6 V IMON, ISUM, PMB_ALERT, PWM1-6, SKIP-NVM, V3R3, VR_RDY, VR_FAULT, VR_HOT 5
COMP voltage (abs max) COMP -0.3 6 V 5
Operating junction temperature TJ -40 150 °C 5
Storage temperature Tstg -55 150 °C 5
ESD HBM V(ESD) -2.5 2.5 kV HBM per ANSI/ESDA/JEDEC JS-001, all pins 5
ESD CDM V(ESD) -1.5 1.5 kV CDM per JESD22-C101, all pins 5
VIN input voltage VIN 4.5 12 17 V 6
V5 input voltage V5 4.5 5 5.5 V 6
TSEN input voltage TSEN -0.1 5.5 V 6
CSP1-6, VSP input voltage -0.1 2.5 V 6
ENABLE, PMB_CLK, PMB_DIO input voltage -0.1 3.5 V 6
V3R3 output voltage V3R3 -0.1 3.3 3.5 V 6
VREF output voltage VREF -0.1 1.72 V 6
Operating free air temperature TA -40 125 °C 6
Junction-to-ambient thermal resistance RθJA 30.6 °C/W RTA (QFN) 40 pins 6
Junction-to-case (top) thermal resistance RθJC(top) 14.2 °C/W 6
Junction-to-board thermal resistance RθJB 6.9 °C/W 6
Junction-to-case (bottom) thermal resistance RθJC(bot) 1.8 °C/W 6
VIN supply current, 6-phase active IVIN 115 µA VVDAC < VVSP < VVDAC + 100 mV, ENABLE = HI 7
V5 supply current IV5 6.1 7 mA PMBus Idle, ENABLE = HI 7
V5 standby current IV5SBY 2 2.6 mA ENABLE = LO 7
V3R3 output voltage VV3R3 3.2 3.3 3.4 V IV3R3 = 0 A 7
V5 UVLO OK threshold VV5UVLOH 4.1 4.25 4.5 V Ramp up 7
V5 UVLO fault threshold VV5UVLOL 3.95 4.05 4.25 V Ramp down 7
VIN UVLO voltage VVINUVLO 6.9 7.25 7.45 V MFR_SPEC_16[1:0] = 01 7
Closed loop VSP tolerance VDAC2 -0.6 0.6 % VR12.0: 1 V ≤ VVSP ≤ 1.52 V, IOUT = 0 A, 0 °C ≤ TA≤ 85 °C 7
Closed loop VSP tolerance VDAC5 -0.8 0.8 % VR12.0: 1.0 V ≤ VVSP ≤ 1.52 V, IOUT = 0 A, -40 °C ≤ TA≤ 125 °C 7
VREF output VVREF 1.685 1.7 1.717 V 4.5 ≤ VV5 ≤ 5.5 V, IVREF = 0 A 7
Switching frequency 500 kHz setting fSW 450 500 550 kHz VVIN = 12 V, VVSP = 1.7 V, RF-IMAX = 30 kΩ and MFR_SPEC_12[7] = 0b 17
Fixed OVP threshold (VR12.0) VOVPF0 1.7 1.75 1.8 V ENABLE is high and (VVSP-VVSN) > VOVPH5 for 1 μs, PWM → LO 12
Over temperature protection threshold OTPTHLD 125 °C default value 14

CAD (KiCad official)

  • Symbol: TPS53667RTAR
  • Footprint: Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm
  • 3D model: WQFN-40-EP(6x6) (KiCad packages3D, STEP)
  • 3D model files: tps53667rtar-etched.step / tps53667rtar-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps53667rtar.step / tps53667rtar.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (126 pp, sha256 994fd9ded6c778c5, retrieved 2026-10-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF