TPS6735 Fixed Negative 5-V 200-MA Inverting DC/DC Converter |

TPS6735 (ACTIVE) Fixed Negative 5-V 200-MA Inverting DC/DC Converter


Recommended alternative parts

  • TPS63700  -  For alternative solutions see also TPS63700 and TPS60400
  • TPS63700  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 
  • TPS60400  -  For alternative solutions see also TPS63700 and TPS60400


The TPS6735 is a fixed negative 5-V output inverting dc/dc converter capable of delivering 200 mA from inputs as low as 4.5 V. The only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference filter capacitor, and a Schottky rectifier. An enable input is provided to shut down the inverter when a -5-V output 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 TPS6735 is a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET power switch. The gate drive uses the -5-V 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 TPS6735 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered equipment requiring high efficiency and low supply current.

The TPS6735 is available in 8-pin DIP and SOIC packages and operates over a free-air temperature range of -40°C to 85°C.


  • Negative 5-V 200-mA Output (VCC >= 4.5 V)
  • \x95 4-V to 6.2-V Input Operating Range
  • \x95 78% Typical Efficiency
  • \x95 160-kHz Fixed-Frequency Current-Mode PWM Controller
  • \x95 EN Input Inhibits Operation and Reduces Supply Current to 1 uA
  • \x95 Soft Start
  • \x95 8-Pin SOIC and DIP Packages
  • \x95 -40°C to 85°C Free-Air Temperature Range
  • \x95 Pin-for-Pin Compatible with MAX735


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Part number Order Topology Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Duty cycle (Max) (%) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Features Iq (Typ) (mA) Rating Type Operating temperature range (C) Package Group
TPS6735 Order now Inverting     4     6.2     -5     -5     2     100     160     160     Enable     1.9     Catalog     Converter     -40 to 85     PDIP | 8
SOIC | 8