MAX17083 Просмотр технического описания (PDF) - Maxim Integrated
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MAX17083 Datasheet PDF : 15 Pages
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Low-Voltage, Internal Switch,
Step-Down Regulator
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN = VFREQ = VCC = VEN = 5V, IREF = no load, TA = 0°C to +85°C, unless otherwise noted. Typical values are at
TA = +25°C.)
PARAMETER
FB Load Regulation
FB Line Regulation
(Slope Compensation)
FB Input Current
Internal MOSFET On-Resistance
(Note 3)
Internal BST On-Resistance
LX Peak Current Limit
LX Idle Mode™ Trip Level
LX Zero-Crossing Trip Level
Soft-Start Ramp Time
Soft-Start Fault Blanking Time
POK Upper Trip Threshold and
Overvoltage Fault Threshold
POK Lower Trip Threshold
POK Propagation Delay Time
Overvoltage Fault Latch
Delay Time
Undervoltage Fault Latch
Delay Time
POK Output Low Voltage
POK Leakage Current
Thermal-Shutdown Threshold
LOGIC INPUTS
EN Input High Threshold
EN Input Bias Current
FREQ and SET Input Voltage
Levels
FREQ and SET Input Bias
Currents
SYMBOL
CONDITIONS
SET = GND
VFB
SET = GND, 0 to 100% duty cycle,
VCC = 4.5V to 5.5V
IFB SET = GND, TA = +25°C
High-side n-channel RDH
Low-side n-channel RDL
TSS
TSSLT
Rising edge, 50mV hysteresis
tPOK
IPOK
TSHDN
Falling edge, 50mV hysteresis
FB forced 50mV beyond POK trip threshold
FB forced 50mV above POK upper trip
threshold
FB forced 50mV below POK lower trip
threshold, TUV
ISINK = 3mA
SET = GND, FB = 1V (POK high impedance),
POK forced to 5.5V, TA = +25°C
Hysteresis = 15°C
Rising, hysteresis = 220mV (typ)
TA = +25°C
VCC
Open
REF
GND
TA = +25°C
MIN
10
-100
5
9
-14
1.0
VCC -
0.5
3
1.2
-2
TYP
-4
15
-5
32
17
2
6
1.5
100
1939/
fSW
3232/
fSW
12
-12
5
5
1534/
fSW
+160
1.4
0.1
+0.1
MAX
20
+100
50
30
8
14
-9
0.4
1
1.6
1
3.2
2.2
0.5
+2
UNITS
mV/A
mV
nA
m
A
A
mA
ms
ms
%
%
μs
μs
ms
V
μA
°C
V
μA
V
μA
Idle Mode is a trademark of Maxim Integrated Products, Inc.
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