TPIC74101-Q1

ACTIVE

480kHz 1.5V to 40V, 1A buck-boost converter with 5V Fixed output Voltage, AEC-Q100 qualified

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TPIC74101-Q1

ACTIVE

Product details

Topology Buck-Boost Vin (Min) (V) 1.5 Vin (Max) (V) 40 Vout (Max) (V) 5 Vout (Min) (V) 5 Duty cycle (Max) (%) 99 Features Enable, Light Load Efficiency, Power Good, Synchronous Rectification Switch current limit (Typ) (A) 1.5 Switching frequency (Min) (kHz) 285 Switching frequency (Max) (kHz) 480 Iq (Typ) (mA) 0.1 Iout (Max) (A) 1 Rating Automotive
Topology Buck-Boost Vin (Min) (V) 1.5 Vin (Max) (V) 40 Vout (Max) (V) 5 Vout (Min) (V) 5 Duty cycle (Max) (%) 99 Features Enable, Light Load Efficiency, Power Good, Synchronous Rectification Switch current limit (Typ) (A) 1.5 Switching frequency (Min) (kHz) 285 Switching frequency (Max) (kHz) 480 Iq (Typ) (mA) 0.1 Iout (Max) (A) 1 Rating Automotive
HTSSOP (PWP) 20 42 mm² 6.5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification level 1B for
      pin 7 (L2), pin 8 (VOUT), pin 9 (5Vg)
    • Device HBM ESD Classification 2 for pins 1–6
      and 10–20
    • Device CDM ESD Classification Level C4B
  • Switch-Mode Regulator
    • 5 V ±2%, Buck Mode
    • 5 V ±3%, Low-Power or Boost or Boost/
      buck Crossover Mode
  • Switching Frequency, 380 kHz (typical)
  • Input Operating Range, 1.5 V to 40 V, (Vdriver)
    • 1-A Load-Current Capability
    • 200-mA Load-Current Capability Down to 2-V Input
      (Vdriver)
    • 120-mA Load-Current Capability Down to
      1.5-V Input (Vdriver)
  • Enable Function
  • Low-Power Operation Mode
  • Switched 5-V Regulated Output on 5Vg With Current
    Limit
  • Programmable Slew Rate and Frequency Modulation
    for EMI Consideration
  • Reset Function With Deglitch Timer and Programmable
    Delay
  • Alarm Function for Undervoltage Detection and
    Indication
  • Thermally Enhanced Package for Efficient Heat
    Management
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification level 1B for
      pin 7 (L2), pin 8 (VOUT), pin 9 (5Vg)
    • Device HBM ESD Classification 2 for pins 1–6
      and 10–20
    • Device CDM ESD Classification Level C4B
  • Switch-Mode Regulator
    • 5 V ±2%, Buck Mode
    • 5 V ±3%, Low-Power or Boost or Boost/
      buck Crossover Mode
  • Switching Frequency, 380 kHz (typical)
  • Input Operating Range, 1.5 V to 40 V, (Vdriver)
    • 1-A Load-Current Capability
    • 200-mA Load-Current Capability Down to 2-V Input
      (Vdriver)
    • 120-mA Load-Current Capability Down to
      1.5-V Input (Vdriver)
  • Enable Function
  • Low-Power Operation Mode
  • Switched 5-V Regulated Output on 5Vg With Current
    Limit
  • Programmable Slew Rate and Frequency Modulation
    for EMI Consideration
  • Reset Function With Deglitch Timer and Programmable
    Delay
  • Alarm Function for Undervoltage Detection and
    Indication
  • Thermally Enhanced Package for Efficient Heat
    Management

The TPIC74101-Q1 is a switch-mode regulator with integrated switches for voltage-mode control. With the aid of external components (LC combination), the device regulates the output to 5 V ±2% for a wide input-voltage range.

The TPIC74101-Q1 offers a reset function to detect and indicate when the 5-V output rail is outside of the specified tolerance. This reset delay is programmable using an external timing capacitor on the RESET Pin. Additionally, an alarm (AOUT) feature is activated when the input supply rail Vdriver is below a prescaled specified value (set by the AIN pin).

The TPIC74101-Q1 has a frequency-modulation scheme to minimize EMI. The clock modulator permits a modulation of the switching frequency to reduce interference energy in the frequency band.

The 5Vg output is a switched 5-V regulated output with internal current limiting to prevent RESET from being asserted when powering a capacitive load on the supply line. This function is controlled by the 5Vg_ENABLE Pin. If there is a short to ground on this output (5Vg output), the output self-protects by operating in a chopping mode. This does, however, increase the output ripple voltage on VOUT during this fault condition.

The TPIC74101-Q1 is a switch-mode regulator with integrated switches for voltage-mode control. With the aid of external components (LC combination), the device regulates the output to 5 V ±2% for a wide input-voltage range.

The TPIC74101-Q1 offers a reset function to detect and indicate when the 5-V output rail is outside of the specified tolerance. This reset delay is programmable using an external timing capacitor on the RESET Pin. Additionally, an alarm (AOUT) feature is activated when the input supply rail Vdriver is below a prescaled specified value (set by the AIN pin).

The TPIC74101-Q1 has a frequency-modulation scheme to minimize EMI. The clock modulator permits a modulation of the switching frequency to reduce interference energy in the frequency band.

The 5Vg output is a switched 5-V regulated output with internal current limiting to prevent RESET from being asserted when powering a capacitive load on the supply line. This function is controlled by the 5Vg_ENABLE Pin. If there is a short to ground on this output (5Vg output), the output self-protects by operating in a chopping mode. This does, however, increase the output ripple voltage on VOUT during this fault condition.

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Type Title Date
* Data sheet TPIC74101-Q1 Buck and Boost Switch-Mode Regulator datasheet (Rev. A) PDF | HTML 04 Nov 2014
EVM User's guide TPIC74101EVM User Guide 08 Dec 2011

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Reference designs

PMP10170 — Automotive Buck-Boost Power Solution Reference Design

PMP10170 provides a constant output voltage of 5.0V @ 500mA from an wide input voltage range of 4.0V up to 39.0V. It is working with a fixed switching frequency of 380 kHz but provides also the possibility to modulate the switching frequency to reduce the EMI.
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HTSSOP (PWP) 20 View options

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