Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of 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
IN
= 3.6V, V
BKBT
= 3.0V, V
LBI
= 1.1V, V
DBI
= 1.35V, circuit of Figure 5,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values
are at T
A
= +25°C.)
PARAMETER
PV1, PV2, PV3, SLPIN, IN Supply
Voltage Range
IN45, IN6 Supply Voltage Range
IN Undervoltage-Lockout (UVLO)
Threshold
V
IN
rising
V
IN
falling
MAX1586
Only V7 on, V
IN
below
DBI threshold V
IN
= 3.0V MAX1587
No load (I
PV1
+
I
PV2
+ I
PV3
+ I
IN
+
I
SLPIN
+ I
IN45
+
I
IN6
)
REG1 and REG2 on in
switch mode, REG3 off
REG1 and REG2 on in
sleep mode, REG3 off
All REGs on
BKBT Input Current
REF Output Voltage
SYNCHRONOUS-BUCK PWM REG1
REG1 Voltage Accuracy
FB1 Voltage Accuracy
FB1 Input Current
Error-Amplifier Transconductance
Dropout Voltage (Note 1)
FB1 = GND, 3.6V
≤
V
PV1
≤
5.5V, load = 0 to 1200mA
FB1 = IN, 3.6V
≤
V
PV1
≤
5.5V, load = 0 to 1200mA
FB1 used with external resistors, 3.6V
≤
V
PV1
≤
5.5V,
load = 0 to 1200mA
FB1 used with external resistors
Referred to FB
Load = 800mA
Load = 1300mA
87
180
293
280
450
3.25
2.955
1.225
3.3
3.0
1.25
3.35
3.045
1.275
100
V
V
nA
µS
mV
ON1 = 0
ON1 = IN
0 to 10µA load
1.2375
MAX1586
MAX1587
MAX1586
MAX1587
MAX1586
MAX1587
CONDITIONS
PV1, PV2, PV3, IN, and SLPIN must connect together
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