MAX1559 Datasheet, PDF (4/14 Pages) Maxim Integrated Products – 5-Output Power-Management IC For Low-Cost PDAs

5-Output Power-Management IC For
Low-Cost PDAs
ELECTRICAL CHARACTERISTICS
(V_IN = V_SWIN = V_ENSD = V_ENC2 = V_ENLCD = 4.0V, T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
GENERAL
PARAMETER
CONDITIONS
MIN
IN, SWIN Voltage Range
Operating
3.1
IN Complete Shutdown Threshold
V_IN falling
2.95
IN Restart Threshold
V_IN rising
3.51
IN, SWIN Operating Current—All On
V_LFB = 1.3V
IN Operating Current—All On Except LCD
ENLCD = GND
IN Operating Current—MAIN and COR1 On
ENLCD = ENC2 = ENSD = GND, LDO
loads = 0µA
IN, SWIN Operating Current—Shut Down
LDOs
V_SWIN = V_IN = 2.9V
MAIN Output Voltage
RS Deassert Threshold for MAIN Rising
RS Assert Threshold MAIN Falling
I_LOAD = 100µA to 300mA,
V_IN = 3.6V to 5.5V
3.2175
3.093
3.0100
MAIN Current Limit
MAIN Dropout Voltage
(0.7Ω typ) (Note 1)
SDIG Output Voltage
SDIG Current Limit
SDIG Dropout Voltage (0.75Ω typ)
SDIG Reverse Leakage Current
COR1 Output Voltage
COR1 Current Limit
I_LOAD = 300mA
I_LOAD = 500mA
I_LOAD = 100µA to 200mA,
V_IN = 3.6V to 5.5V
I_LOAD = 1mA
I_LOAD = 200mA
I_LOAD = 400mA
V_SDIG = 5V, ENSD = V_IN = GND
I_LOAD = 100µA to 200mA,
V_IN = 3.6V to 5.5V
630
3.2175
420
0.96
250
COR2 Output Voltage
I_LOAD = 100µA to 20mA,
V_IN = 3.6V to 5.5V
1.755
COR2 Current Limit
30
LCD
LX Voltage Range
LX Current Limit
L1 = 10µH
200
LX Leakage Current
Maximum LX On-Time
Minimum LX Off-Time
LFB Feedback Threshold
V_LX = 28V
V_LFB > 1.1V
V_LFB < 0.8V (soft-start)
8
0.8
3.9
1.220
MAX UNITS
5.5
V
3.05
V
3.69
V
125
µA
110
µA
65
µA
10
µA
3.3825
V
3.252
V
3.1755
V
1200 mA
310
mV
525
3.3825
V
825
mA
800
300
mV
600
15
µA
1.025
V
750
mA
1.845
V
100
mA
28
V
285
mA
2
µA
14
µs
1.2
µs
6.0
1.270
V
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