Features: · +5V regulated output· Doubles input supply voltage· TSSOP 14 package· 80% typical conversion efficiency at 25mA· Input voltage range of 2.85V to 6.5V· Independent shutdown control pinsApplication· Cellular phones· Pagers· PDAs· Handheld Instrumentation· 3.3V to 5V Voltage Conversion Ap...
LM2686: Features: · +5V regulated output· Doubles input supply voltage· TSSOP 14 package· 80% typical conversion efficiency at 25mA· Input voltage range of 2.85V to 6.5V· Independent shutdown control pinsAp...
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If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage (VIN to GND) .............................................6.8V
SD, CE ..........................................(GND − 0.3V) to(VIn + 0.3V)
V05 Continuous Output Current ......................................80mA
V05 Short-Circuit Duration to GND(Note 2).................Indefinite
Continuous Power Dissipation (TA= 25°C) (Note 3).... 600mW
TJMAX (Note 3) ..............................................................150°C
JA (Note 3)............................................................. 140°C/W
Operating Ambient Temp. Range................... −40°C to 85°C
Operating Junction Temperature
Range .........................................................−40°C to 125°C
Storage Temp. Range.................................. −65°C to 150°C
Lead Temp. (Soldering, 10 sec.) ...................................300°C
ESD Rating (Note 4).......................................................... 2kV
The LM2686 CMOS charge-pump voltage converter operates as an input voltage doubler and a +5V regulator for an input voltage in the range of +2.85V to +6.5V. Three low cost capacitors are used in this circuit to provide up to 50mA of output current at +5.0V (± 5%). The LM2686 operates at a 130 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 450A (operating efficiency greater than 80% with most loads) and 6.0A typical shutdown current, the LM2686 is ideal for use in battery powered systems. The device is in a small 14-pin TSSOP package.