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

5-Output Power-Management IC For
Low-Cost PDAs
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = V_SWIN = V_ENSD = V_ENC2 = V_ENLCD = 4.0V, T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
LFB Input Bias Current
SW Off-Leakage Current
LOGIC IN AND OUT
V_LFB = 1.3V
SW = GND, V_SWIN = 5.5V, ENLCD = GND
EN_ Input Low Level
V_IN = 3.1V to 5.5V
EN_ Input High Level
V_IN = 3.1V to 5.5V
1.4
EN_ Input Leakage Current
RS, Output Low Level
RS, Output High Leakage
Sinking 1mA, V_IN = 2.5V
V_OUT = 5.5V
Note 1: Specification is guaranteed by design, not production tested.
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
MAX
100
1
UNITS
nA
µA
0.4
V
V
1
µA
0.4
V
1
µA
(Circuit of Figure 1, T_A = +25°C, unless otherwise noted.)
Typical Operating Characteristics
MAIN DROPOUT VOLTAGE
vs. LOAD CURRENT
500
400
300
200
100
0
0 100 200 300 400 500 600
I_LOAD (mA)
SDIG DROPOUT VOLTAGE
vs. LOAD CURRENT
300
250
200
150
100
50
0
0 50 100 150 200 250 300
I_LOAD (mA)
MAIN OUTPUT VOLTAGE
vs. LOAD CURRENT
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
0 100 200 300 400 500 600 700 800 900
I_LOAD (mA)
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