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MAX8760 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX8760
Description  Dual-Phase, Quick-PWM Controller for AMD Mobile Turion 64 CPU Core Power Supplies
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX8760 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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Dual-Phase, Quick-PWM Controller for AMD
Mobile Turion 64 CPU Core Power Supplies
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, VCC = VDD = V SHDN = V SKIP = VS0 = VS1 = 5V, VFB = VCMP = VCMN = VCSP = VCSN = 1.3V, OFS =
SUS = GNDS = D0–D5 = GND, TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TON = GND
(550kHz)
155
180
205
TON = REF
(300kHz)
320
355
390
TON = open
(200kHz)
475
525
575
On-Time (Note 3)
tON
V+ = 12V,
VFB = VCCI = 1.2V
TON = VCC
(100kHz)
920
1000
1140
ns
TON = GND
300
375
Minimum Off-Time (Note 3)
tOFF(MIN)
TON = VCC, open, or REF
400
480
ns
BIAS AND REFERENCE
Quiescent Supply Current (VCC)ICC
Measured at VCC, FB forced above the
regulation point, OAIN- = FB, VOAIN+ = 1.3V
1.70
3.20
mA
Quiescent Supply Current (VDD)IDD
Measured at VDD, FB forced above the
regulation point
<1
5
µA
Quiescent Battery Supply Current
(V+)
IV+
Measured at V+
25
40
µA
Shutdown Supply Current (VCC)
Measured at VCC, SHDN = GND
4
10
µA
Shutdown Supply Current (VDD)
Measured at VDD, SHDN = GND
<1
5
µA
Shutdown Battery Supply Current
(V+)
Measured at V+, SHDN = GND,
VCC = VDD = 0V or 5V
<1
5
µA
Reference Voltage
VREF
VCC = 4.5V to 5.5V, IREF = 0
1.990
2.000
2.010
V
Reference Load Regulation
∆VREF
IREF = -10µA to 100µA
-10
+10
mV
FAULT PROTECTION
Output Overvoltage Protection
Threshold
VOVP
2.00
V
Output Overvoltage Propagation
Delay
tOVP
FB forced 2% above trip threshold
10
µs
Output Undervoltage Protection
Threshold
VUVP
Measured at FB with respect to unloaded
output voltage
67
70
73
%
Output Undervoltage Propagation
Delay
tUVP
FB forced 2% below trip threshold
10
µs
Lower threshold
(undervoltage)
-12
-10
-8
VROK Threshold
Measured at FB
with respect to
unloaded output
voltage
Upper threshold
(overvoltage)
SKIP = VCC
+8
+10
+12
%


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