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

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

Description

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.

Features

  • 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

Parametrics

Compare all products in Buck-boost, inverting & split-rail converters (integrated switch) Email Download to Excel
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