MAX1534 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers

High-Efficiency, Triple-Output, Keep-Alive
Power Supply for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V_IN = 12V, ILIM = GND, PRESET = GND, T_A = 0°C to +85°C, unless otherwise noted. Typical values are at T_A =
+25°C.)
PARAMETER
OUT1 Voltage Accuracy
(Preset Mode)
SYMBOL
V_OUT1
CONDITIONS
PRESET = GND
I_OUT1 = 100µA to
160mA
MIN TYP MAX UNITS
3.20 3.30 3.37
V
OUT2 Voltage Accuracy
(Preset Mode)
V_OUT2
PRESET = GND
I_OUT2 = 100µA to
160mA
1.74 1.80 1.84
V
FB1, FB2 Set Voltage
(Adjustable Mode)
FB1, FB2 Bias Current
OUT1, OUT2 Adjustable Output
Voltage Range
Maximum OUT1 Output Current
OUT1 Current Limit
Maximum OUT2 Output Current
OUT2 Current Limit
LDOIN Current
V_FB1, V_FB2
V_OUT1,
V_OUT2
I_OUT1(MAX)
I_OUT2(MAX)
PRESET = IN
I_{OUT_} = 100µA to
160mA
PRESET = IN, V_FB1 = V_FB2 = 1.1V
PRESET = IN
Continuous
Continuous
I_OUT1 = I_OUT2 = 0, V_LDOIN = 5.5V
0.97 1.00 1.02
V
-25
+25
nA
1.0
V_LDOIN
V
160
mA
160
550
mA
160
mA
160
550
mA
165 265
µA
LDO_ Dropout Voltage
I_{OUT_} = 80mA (Note 2)
120 240
mV
LDO_ Line Regulation
FAULT DETECTION
POK Threshold
POK Propagation Delay
POK Output Low Voltage
POK Leakage Current
Thermal Shutdown Threshold
INPUTS AND OUTPUTS
SHDN Input Trip Level
Input Leakage Current
PRESET, ILIM Logic Levels
V_LDOIN = (V_{OUT_} + 0.4V) or
+2.5V to +5.5V, I_{OUT_} = 1mA
OUT1, OUT2, and FB3 rising edge,
1% hysteresis (Note 3)
Falling edge, 50mV overdrive
I_SINK = 1mA
High state, forced to 5.5V
Typical hysteresis = 15°C
Rising trip level, 100mV hysteresis
V_SHDN, V_PRESET, V_ILIM = 0 or 24V
Low
High
-0.2
0
+0.2 %/V
-13
-11
-9
%
10
µs
0.4
V
1
µA
+160
°C
0.96 1.0 1.04
V
-1
+1
µA
0.5
V
2.2
V
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