MAX665CPA+ ,8V CMOS Switched-Capacitor Voltage ConverterFeatures
. 0.65V Loss at 100mA Load
. 6.59 Output Impedance
. Pln-Compatlble High-Current ICL766 ..
MAX665CWE ,8V CMOS Switched-Capacitor Voltage Converterapplications.
The MAX665 can also double the output voltage of an
input power supply or battery, ..
MAX665EPA ,8V CMOS Switched-Capacitor Voltage ConverterGeneral Description
The MAX665 charge-pump voltage inverter converts a
+1.5V to +8V input to a ..
MAX665MJA ,8V CMOS Switched-Capacitor Voltage ConverterFeatures
. 0.65V Loss at 100mA Load
. 6.59 Output Impedance
. Pln-Compatlble High-Current ICL766 ..
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MAX6660AEE ,Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus InterfaceFeatures♦ Integrated Thermal Sensing and Fan-RegulationThe MAX6660 is a remote temperature sensor a ..
MB3763P ,Bidirectional Motor DriverBLOCK DIAGRAMA-VCC B-VCCInputLogicA-OUT B-OUTA-IN GND B-IN2MB3763nnnn ABSOLUTE MAXIMUM RATINGS(Ta = ..
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MB3771. ,Power Supply Monitor
MAX665CPA+
8V CMOS Switched-Capacitor Voltage Converter
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General Description Features E
The MAX665 charge-pump voltage inverter converts a t 0.65V Loss at 100mA Load
+1.5V to +8V input to a corresponding -1.5V to -8V . s_sn Outputlmpedance
output. Using only two Iow-cost capacitors to produce
100mA, the MAX665 replaces switching regulators, elim- . Pln-Compatlble High-Current ICL7660 Upgrade a
inating inductors and their associated cost, size, and . Inverts or Doubles lnputSupply Voltage th
EMI. Greater than 90% efficiency over most of its load- . Selectab'e thtttilltttttr Frsquentty:10kHz/46kHa th
current range combined with a 200PA typical operating
current provides ideal performance for both battery-pow-
ered and board-level voltage conversion applications.
The MAX665 can also double the output voltage of an
input power supply or battery, providing +9.35V at
100mA from a +5V input.
0 88% Conversion EfBtMrttty at 100mA (lc to GND)
t 200M Operating Current
. +1.5V to MN Supply
A Frequency Control (FC) pin selects either 10kHz or Ordering Information
45kHz operation to optimize capacitor size and quiescent
current. The oscillator frequency can also be adjusted PART TEMP. RANGE PIN-PACKAGE
with an external capacitor or driven with an external clock. M AX665 CPA . C . .
The MAX665 is a pin-compatible high-current upgrade O to +70 C 8 Plastic DIP
of the ICL7660. For an 8-pin SO version with a 5.5V MAX665CWE 0°C to +70'C 16 Wide so
maximum input voltage, refer to the MAX660 data sheet. MAX665C/D cc to +70°C Dice'
The MAX665 is available in both 8-pin DIP and 16-pin MAX665EPA -40°C to +850 8Plastic DIP
wide SO packages in commercial, extended, and military M AX665EWE 40.0 to +85'C 16 Wide SO
temperature ranges. I MAX665MJA -55'C to +125''C 8 CERDIP
A I cations
PP ' Dice are tested at +25'C only.
Laptop Computers
Medical Instruments . "
. Typical Operating Circuits
Interface Power Supplies
Handheld Instruments WN
Op-Amp Power Supplies 1 8 I/N To IN
. . - FC V+
GaAs Power-Amp Bias Supplies 2 ,
CAP+ OSC -
" . + 3 MAXIM 5
Pin Gonrrgurationts 15% cc- (910 MAX665 LI/ 1 1,5931ng
L Icns, ovrf - 53W
TOPVIEW 150WF
VOLTAGE INVERTER Jf
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CAP+ E "If'gf' El osc FO " VOLTAGE
GND E E LII Cl 2 osc + 02 OUTPUT
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CAP- E E our _ 3 MAXIM s
+VIN GND MAX665 LV
2.5V T0 av 4 5
DIP (W'- OUT
POSITIVEVOLTAGEDOUBLER =
Wide so oft Iastpage PIN NUMBERS REFER TO DIP PACKAGE.
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Call toll free fAttNN99tVStttNt for free samples or literature.
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8 ABSOLUTE MAXIMUM RATINGS
Operating Temperature Ranges:
Supply Voltage (V+ to GND, or GND to OUT) ......... +8.5V . .
ttt LVInputVoltage .............. (OUT-O.3V)to(V++O.3V) 'tttgi-- '.r.r.rr.rr.r.r,r,r,rrdi'11o,,'.2.f,
FC and OSC lnputVoltages .......... The Least Negative of MAX665MJK . . . . . . . . . . . . ' . ' . ' ' , ' ' ' ' . ' 550 to $25.0
. (OUT - 0.3V) or (V+ - 6V) to (V+ + 0.3V) Storage Temperature Range .............. -65''C to +160'C
OUT and V+ Continuous OutputCurrent ............. 120mA Lea d Tem r t r ( I d ' 10 s e c) 300.0
Output Short-Circuit Duration to GND (Nate 1) ......... 1 sec pe a u e so enng, .r.........t.t +
Continuous Power Dissipation (TA = +70''C)
8-Pin Plastic DIP (derate 9.09mW/''C above +70''C) . 727mw
16-Pin Wide SO (derate 9.52rNN/" C above +70°C) . . 762mW
8-Pin CERDIP (derate 8.00mW/‘C above +70°C) . . . . 640mW
Note 1: OUT may be shorted to GND for 1 sec without damage, but shorting OUT to " may damage the device.
Stresses be and those listed under 'Absolute Maximum Ratings'may cause permanent damage to the device. These are stress ratings only, and functional
operation t2 the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 5V, C1, C2 = 150PF, test circuit of Figure I, FC = open, TA = TMIN to TMAX, unless otherwise noted.) (Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Inverter, LV = open 3 8
Operating Supply Voltage RL = 1m Inverter, LV = GND 1.5 8 V
Doubler, LV = OUT 2.5 8
Supply Current No load FC = open 0.2 OS mA
FC = V+ 1 3
TA E +85'C, OUT more negative than -4V 100
Output Current . . mA
TA > +85 C, OUT more negative than -3.8V 100
. TA s +85'C 6.5 10
Output Resistance (Note 3) IL = 100mA . a
TA > +85 C 12
Oscillator Frequency FC = open 10 kHz
FC = V+ 45
OSC Input Current FC = open *1 .1 ILA
FC = V+ A5
RL = 1142 connected between V+ and OUT 96 98
Power Efficiency RL = 5009 connected between OUT and GND 92 96 %
IL = 100mA to GND 88
Voltage Conversion Efficiency No load 99 99.96 %
Note 2: In the test circuit, capacitors C1 and C2 are 150p.F, 0.2.0 maximum ESR, aluminum electrolytes (Maxim part # MAXCOO1).
Capacitors with higher ESR may reduce output voltage and efficiency.
Note 3: Specified output resistance is a combination of internal switch resistance and capacitor ESR. See Capacitor Selection section.
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