Texas Instruments (MAX660MX/NOPB) DC/DC Charge Pump Adjustable

DC/DC Charge Pump Adjustable Voltage Inverter, 1.5V to 5.5V in, -5.5V to -1.5V/100mA out, SOIC-8

Product Overview
The MAX660MX/NOPB is a switched capacitor voltage converter in 8 pin SOIC package. The CMOS charge pump voltage converter inverts a positive voltage in the range of 1.5V to 5.5V to the corresponding negative voltage. It uses two low cost capacitors to provide 100mA of output current without the cost, size and EMI related to inductor based converters. With an operating current of only 120µA and operating efficiency greater than 90% at most loads, the IC provides ideal performance for battery powered systems and may also be used as a positive voltage doubler. The oscillator frequency can be lowered by adding an external capacitor to the OSC pin. Also, the OSC pin may be used to drive the IC with an external clock. A frequency control (FC) pin selects the oscillator frequency of 10KHz or 80KHz. It is used in laptop computers, cellular phones, operational amplifier power supplies and interface power supplies.

Inverts or doubles input supply voltage
6.5ohm typical output resistance
88% typical conversion efficiency at 100mA
Operating junction temperature range from -40°C to 85°C
Supply current of 0.5mA at no load (FC = open, LV = open)
Output current of 100mA at TA <= +85°C, OUT <= -4V
Power efficiency of 98% at RL (1K) between V+ and OUT
Voltage conversion efficiency is 99.96% at no load

Applications
Power Management, Industrial, Portable Devices, Medical

Product Information

Output Type: Adjustable
Input Voltage Min: 1.5V
Input Voltage Max: 5.5V
DC / DC Converter IC Case: SOIC
No. of Pins: 8Pins
Output Current: 100mA

Adjustable Output Voltage Min: -5.5V
Adjustable Output Voltage Max: -1.5V
Topology: Doubler, Inverting
Operating Temperature Max: 85°C

What's in the box
1 x DC/DC Adjustable Charge Pump Voltage Converter