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TPS6755

ACTIVE

Adjustable Inverting DC/DC Converter

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TPS63700 ACTIVE Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN Smaller solution size, higher efficiency

Product details

Topology Inverting Vin (min) (V) 2.7 Vin (max) (V) 9 Vout (max) (V) -1.23 Vout (min) (V) -9.3 Duty cycle (max) (%) 100 Features Enable Switch current limit (typ) (A) 2 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 160 Iq (typ) (mA) 1.9 Iout (max) (A) 1 Rating Catalog Operating temperature range (°C) to Type Converter
Topology Inverting Vin (min) (V) 2.7 Vin (max) (V) 9 Vout (max) (V) -1.23 Vout (min) (V) -9.3 Duty cycle (max) (%) 100 Features Enable Switch current limit (typ) (A) 2 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 160 Iq (typ) (mA) 1.9 Iout (max) (A) 1 Rating Catalog Operating temperature range (°C) to Type Converter
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 1-W Output (VCC >= 4.5 V)
  • 2.7-V to 9-V Input Operating Range
  • 78% Typical Efficiency
  • 160-kHz Fixed-Frequency Current-Mode PWM Controller
  • EN Input Inhibits Operation and Reduces Supply Current to 1 uA
  • Output Voltage Limited to VO <= 12 V- VCC
  • Soft Start
  • 8-Pin SOIC and DIP Packages
  • -40°C to 85°C Free-Air Temperature Range
  • Pin-for-Pin Compatible with MAX755
  • 1-W Output (VCC >= 4.5 V)
  • 2.7-V to 9-V Input Operating Range
  • 78% Typical Efficiency
  • 160-kHz Fixed-Frequency Current-Mode PWM Controller
  • EN Input Inhibits Operation and Reduces Supply Current to 1 uA
  • Output Voltage Limited to VO <= 12 V- VCC
  • Soft Start
  • 8-Pin SOIC and DIP Packages
  • -40°C to 85°C Free-Air Temperature Range
  • Pin-for-Pin Compatible with MAX755

The TPS6755 is an adjustable inverting dc/dc converter capable of operating from inputs as low as 2.7 V. The only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference filter capacitor, two resistors, and a Schottky rectifier. An enable input is provided to shut down the inverter when an output voltage is not needed. The typical supply current is 1.9 mA at no-load and is further reduced to 1-uA when the enable input is low.

The device features a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET power switch. The gate drive uses the converter output to reduce the die area needed to realize the 0.4- MOSFET. Soft start is accomplished with the addition of one small capacitor at SS. A 1.22-V reference is available for external loads up to 125 uA.

The TPS6755 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered equipment requiring high efficiency and low supply current.

Available in an 8-pin DIP or an 8-pin SOIC package, the TPS6755 operates over a free-air temperature range of - 40°C to 85°C.

The TPS6755 is an adjustable inverting dc/dc converter capable of operating from inputs as low as 2.7 V. The only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference filter capacitor, two resistors, and a Schottky rectifier. An enable input is provided to shut down the inverter when an output voltage is not needed. The typical supply current is 1.9 mA at no-load and is further reduced to 1-uA when the enable input is low.

The device features a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET power switch. The gate drive uses the converter output to reduce the die area needed to realize the 0.4- MOSFET. Soft start is accomplished with the addition of one small capacitor at SS. A 1.22-V reference is available for external loads up to 125 uA.

The TPS6755 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered equipment requiring high efficiency and low supply current.

Available in an 8-pin DIP or an 8-pin SOIC package, the TPS6755 operates over a free-air temperature range of - 40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet Adjustable Inverting DC/DC Converter datasheet (Rev. A) 01 Dec 1996
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 12 Mar 2019
User guide TSW2200 Multi-Output Power Supply Board (Rev. A) 13 Dec 2012
Application note TPS6755 Evaluation Using the TSP6735EVM 23 May 2003

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PDIP (P) 8 View options
SOIC (D) 8 View options

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