ML4851IS-5 Просмотр технического описания (PDF) - Micro Linear Corporation
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ML4851IS-5 Datasheet PDF : 9 Pages
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ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
VOUT .......................................................................... 7V
Voltage on any other pin ..... GND – 0.3V to VOUT + 0.3V
Peak Switch Current, I(PEAK) ................................................... 1A
Average Switch Current, I(AVG) ..................................... 250mA
Junction Temperature .............................................. 150ºC
Storage Temperature Range ...................... –65ºC to 150ºC
Lead Temperature (Soldering 10 sec.) ..................... 260ºC
ML4851
OPERATING CONDITIONS
Temperature Range
ML4851CS-X .............................................. 0ºC to 70ºC
ML4851ES-X ........................................... –20ºC to 70ºC
VIN Operating Range
ML4851CS-X ................................ 1.0V to VOUT – 0.2V
ML4851ES-X ................................ 1.1V to VOUT – 0.2V
Thermal Resistance (qJA) .................................... 160ºC/W
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VIN = Operating Voltage Range, TA = Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
SUPPLY
IIN
VIN Current
IOUT(Q) VOUT Quiescent Current
IL
VL Quiescent Current
REFERENCE
VIN = VOUT – 0.2V
50
60
8
10
1
VREF Output Voltage
PFM REGULATOR
0 < IREF < –5µA
190
200
210
tON Pulse Width
OUTPUT VOLTAGE
4.5
5
5.5
VOUT Output Voltage
Load Regulation
Undervoltage Lockout Threshold
RESET COMPARATOR
tON = 0 at VOUT(MAX),
-3 Suffix
4.5µs £ tON £ 5.5µs
at VOUT(MIN)
-5 Suffix
See Figure 1, -3 Suffix
VIN = 1.2V, IOUT £ 10mA
See Figure 1, -3 Suffix
VIN = 2.4V, IOUT £ 65mA
See Figure 1, -5 Suffix
VIN = 1.2V, IOUT £ 18mA
See Figure 1, -5 Suffix
VIN = 2.4V, IOUT £ 85mA
3.2
4.85
3.2
3.2
4.85
4.85
3.3
5.0
3.3
3.3
5.0
5.0
0.85
3.4
5.15
3.4
3.4
5.15
5.15
0.95
DETECT Threshold
194
200
206
DETECT Bias Current
–100
100
RESET Output High Voltage
RESET Output Low Voltage
IOH = 100µA
IOL = -100µA
VOUT – 0.2
0.2
UNITS
µA
µA
µA
mV
µs
V
V
V
V
V
V
V
mV
nA
V
V
Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.
DATASHEET July 2000
3
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