MAX1552 Datasheet, PDF (4/12 Pages) Maxim Integrated Products – Complete Power IC for Low-Cost PDAs

Complete Power IC for
Low-Cost PDAs
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = V_SWIN = V_ENSD = V_ENC2 = V_ENLCD = 4.0V, T_A = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
LDOs
MAIN Output Voltage
MAIN Current Limit
MAIN Dropout Voltage
I_LOAD = 100µA to 300mA,
V_IN = 3.6V to 5.5V
I_LOAD = 300mA
3.2175
350
SDIG Output Voltage
I_LOAD = 100µA to 200mA,
V_IN = 3.6V to 5.5V
3.2175
SDIG Current Limit
SDIG Dropout Voltage
SDIG Reverse Leakage Current
COR1 Output Voltage
COR1 Current Limit
COR2 Output Voltage
COR2 Current Limit
I_LOAD = 200mA
V_SDIG = 5V, ENSD = V_IN = GND
I_LOAD = 100µA to 20mA, V_IN = 3.6V to 5.5V
I_LOAD = 100µA to 20mA, V_IN = 3.6V to 5.5V
250
1.4625
250
1.755
30
LCD
LX Voltage Range
LX Current Limit
LX Leakage Current
Maximum LX On-Time
Minimum LX Off-Time
LFB Feedback Threshold
LFB Input Bias Current
SW Off-Leakage Current
LOGIC IN AND OUT
EN_ Input Low Level
EN_ Input High Level
EN_ Input Leakage Current
RS, LBO Output Low Level
RS, LBO Output High Leakage
V_LX = 28V
V_LFB > 1.1V
V_LFB < 0.8V (soft-start)
V_LFB = 1.3V
SW = GND, V_SWIN = 5.5V, ENLCD = GND
V_IN = 3.0V to 5.5V
V_IN = 3.0V to 5.5V
Sinking 1mA, V_IN = 2.5V
V_OUT = 5.5V
200
8
0.8
4.0
1.22
1.4
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
MAX
UNITS
3.3825
V
1200
mA
310
mV
3.3825
V
390
mA
300
mV
15
µA
1.5375
V
800
mA
1.845
V
100
mA
28
V
275
mA
2
µA
14
µs
1.2
µs
6.0
1.27
V
100
nA
1
µA
0.4
V
V
1
µA
0.4
V
1
µA
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