MAX680ESA Maxim Integrated Products, MAX680ESA Datasheet
MAX680ESA
Specifications of MAX680ESA
Available stocks
Related parts for MAX680ESA
MAX680ESA Summary of contents
Page 1
... Voltage Converters ____________________________Features 95% Voltage-Conversion Efficiency 85% Power-Conversion Efficiency +2V to +6V Voltage Range Only Four External Capacitors Required (MAX680) No Capacitors Required (MAX681) 500µA Supply Current Monolithic CMOS Design _______________Ordering Information PART MAX680CPA MAX680CSA MAX680C/D MAX680EPA MAX680ESA MAX680MJA MAX681CPD MAX681EPD _________Typical Operating Circuits + GND +5V V ...
Page 2
Voltage Converters ABSOLUTE MAXIMUM RATINGS V ................................................................................... +6. ...................................................................................... +12V V- ..........................................................................................-12V V- Short-Circuit Duration ...........................................Continuous V+ Current ..........................................................................75mA ∆V/∆T ..........................................................................1V/µ Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage ...
Page 3
Operating Characteristics (T = +25°C, unless otherwise noted.) A OUTPUT RESISTANCE vs. SUPPLY VOLTAGE 250 C1- 200 R + OUT 150 100 R - OUT 50 0 2.0 3.0 4.0 5.0 V (V) OUTPUT VOLTAGE vs. ...
Page 4
Voltage Converters 4.7 F MAX680 C2 GND Figure 1. ...
Page 5
S5 and S7 are open, S6 and S8 are closed, and the charge transferred to C4, generating the negative supply. The eight switches are CMOS power MOSFETs. S1, S2, S4, and S5 are P-channel switches, while ...
Page 6
... The negative output voltage will be: of 5V, V+ will ( The positive and negative charge pumps are tested and specified separately to provide the separate values of output source resistance for use in the above formu- las. When the positive charge pump is tested, the neg- ative charge pump is unloaded. When the negative ...
Page 7
Paralleling Devices Paralleling multiple MAX680/MAX681s reduces the out- put resistance of both the positive and negative con- verters. The effective output resistance is the output resistance of a single device divided by the number of devices. As Figure 4 shows, ...
Page 8
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1989 Maxim Integrated Products ...