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 Products > Analog - Regulators > SwitchedCapacitor Converters > LM2685

LM2685  Product Folder

Dual Output Regulated Switched Capacitor Voltage Converter
Generic P/N 2685
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
Multiple Output Capability Yes 
On/Off Pin Yes 
Error Flag No 
InputMin Voltage (Volt) 2.85 
InputMax Voltage (Volt) 6.50 
Output Current (mA) 50 
Output Voltage (Volt) 5 
Adjustable Output No 
Switching Frequency (Hz) 130000 
Adj Switch Frequency No 
Sync Pin No 
Efficiency (%) 80 
Inverting Yes 
Step-Up Yes 
Step-Down Yes 
RegType Switched Cap Regulator 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM2685 Dual Output Regulated Switched Capacitor Voltage Converter 244 Kbytes 4-May-00 View Online Download Receive via Email
LM2685 Dual Output Regulated Switched Capacitor Voltage Converter (JAPANESE)
 310 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM2685MTCTSSOP14StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.04rail
of
94		NSXYTT
LM2685
MTC
13 weeks20000
LM2685MTCXTSSOP14StatusFull productionN/AN/A 1K+$1.04reel
of
2500		NSXYTT
LM2685
MTC
13 weeks20000
LM2685 MDAUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0

General Description

The LM2685 CMOS charge-pump voltage converter operates as an input voltage doubler, +5V regulator and inverter for an input voltage in the range of +2.85V to +6.5V. Five low cost capacitors are used in this circuit to provide up to 50mA of output current at +5V (± 5%), and 15mA at -5V. The LM2685 operates at a 130 kHz switching frequency to reduce output resistance and voltage ripple. With an operating current of only 800µA (operating efficiency greater than 80% with most loads) and 6µA typical shutdown current, the LM2685 is ideal for use in battery powered systems. The device is in a small 14-pin TSSOP package.

Features

  • +5V regulated output
  • Inverts V05(+5V) to VNEG(-5V)
  • 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 pins

Applications

  • Cellular phones
  • Pagers
  • PDAs
  • Handheld instrumentation
  • 3.3V to 5V voltage conversion applications

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM2685 MDAABCD15001020000924003926125054
LM2685MTCABCD15001020000924003926125054
LM2685MTCXABCD15001020000924003926125054

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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