MAX8662 データシートの表示（PDF） - Maxim Integrated
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MAX8662 Datasheet PDF : 34 Pages
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Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
ELECTRICAL CHARACTERISTICS (Output Regulator) (continued)
(VSYS_ = VPV_ = VIN45 = VIN67 = 4.0V, VBRT = 1.25V, circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
FB Regulation Accuracy
From VFB1 = 0.98V, IOUT1 = 0 to 1200mA,
VOUT1 = 0.98V to 3.3V
FB1 Input Leakage Current
pMOS On-Resistance
nMOS On-Resistance
pMOS Current Limit
ILX1 = 100mA
ILX1 = 100mA
VPV1 = 3.3V
VPV1 = 2.6V
VPV1 = 3.3V
VPV1 = 2.6V
Skip Mode Transition Current
nMOS Zero-Cross Current
LX Leakage
Soft-Start Time
VEN1 = 0V, VSYS = 5.5V,
TA = +25°C
VLX1 = VPV1 = 5.5V
VLX1 = 0V, VPV1 = 5.5V
BUCK REGULATOR 2
Supply Current
Output Voltage Range
ISYS + IPV2, no load, not
including SYS bias current
VPWM = 0V
VPWM = 5V
Guaranteed by FB accuracy
Maximum Output Current
FB Regulation Accuracy
From VFB2 = 0.98V, IOUT2 = 0 to 600mA,
VOUT2 = 0.98V to 3.3V
FB2 Input Leakage Current
pMOS On-Resistance
nMOS On- Resistance
ILX2 = 100mA
ILX2 = 100mA
VPV2 = 3.3V
VPV2 = 2.6V
VPV2 = 3.3V
VPV2 = 2.6V
pMOS Current Limit
Skip Mode Transition Current
nMOS Zero-Cross Current
LX Leakage
Soft-Start Time
VEN2 = 0V, VSYS = 5.5V,
TA = +25°C
VLX2 = VPV2 = 5.5V
VLX2 = 0V, VPV2 = 5.5V
BOOST REGULATOR FOR LED DRIVER
Supply Current
At SYS, no load, not
including SYS bias current
Switching
Output Range
Minimum Duty Cycle
VOUT3
DMIN
Maximum Duty Cycle
CS Regulation Voltage
OVP Regulation Voltage
DMAX
VCS
Duty = 90%, ILX3 = 0mA
OVP Sink Current
OVP Soft-Start Period
Time for IOVP to ramp from 0 to 20µA (Note 5)
MIN
-3
1.4
-5.00
0.98
900
-3
1.07
-5.00
VSYS
90
0.29
1.225
19.2
TYP
0.01
0.12
0.15
0.2
0.3
1.8
90
25
0.01
-0.01
400
16
2.1
0.01
0.2
0.3
0.2
0.3
1.30
90
25
0.01
-0.01
400
1
10
92
0.32
1.250
20.0
1.25
MAX UNITS
+3
%
0.10 µA
0.24
Ω
0.4
Ω
2.2
A
mA
mA
1.00
µA
µs
35
µA
mA
3.30
V
mA
+3
%
0.10 µA
0.4
Ω
0.4
Ω
1.55
A
mA
mA
1.00
µA
µs
mA
30
V
%
%
0.35
V
1.275 V
20.8 µA
ms
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