ML4851
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
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.
Temperature Range
ML4851CS-X.............................................. 0ºC to 70ºC
ML4851ES-X ...........................................–20ºC to 70ºC
IN
V
Operating Range
ML4851CS-X................................ 1.0V to V
ML4851ES-X ................................ 1.1V to V
Thermal Resistance (q ).................................... 160ºC/W
– 0.2V
– 0.2V
OUT
OUT
V
.......................................................................... 7V
OUT
Voltage on any other pin .....GND – 0.3V to V
+ 0.3V
OUT
...................................................1A
JA
Peak Switch Current, I
Average Switch Current, I
(PEAK)
..................................... 250mA
(AVG)
Junction Temperature .............................................. 150ºC
Storage Temperature Range ...................... –65ºC to 150ºC
Lead Temperature (Soldering 10 sec.) ..................... 260ºC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V = Operating Voltage Range, T = Operating Temperature Range (Note 1)
IN
A
SYMBOL
SUPPLY
IIN
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN Current
VIN = VOUT – 0.2V
50
8
60
10
1
µA
µA
µA
IOUT(Q) VOUT Quiescent Current
IL
VL Quiescent Current
Output Voltage
REFERENCE
VREF
0 < IREF < –5µA
190
4.5
200
5
210
5.5
mV
µs
PFM REGULATOR
tON
Pulse Width
OUTPUT VOLTAGE
VOUT
Output Voltage
-3 Suffix
-5 Suffix
3.2
4.85
3.2
3.3
5.0
3.3
3.3
5.0
5.0
0.85
3.4
5.15
3.4
V
V
V
V
V
V
V
tON = 0 at VOUT(MAX)
,
4.5µs £ tON £ 5.5µs
at VOUT(MIN)
Load Regulation
See Figure 1, -3 Suffix
VIN = 1.2V, IOUT £ 10mA
See Figure 1, -3 Suffix
VIN = 2.4V, IOUT £ 65mA
3.2
3.4
See Figure 1, -5 Suffix
VIN = 1.2V, IOUT £ 18mA
4.85
4.85
5.15
5.15
0.95
See Figure 1, -5 Suffix
VIN = 2.4V, IOUT £ 85mA
Undervoltage Lockout Threshold
RESET COMPARATOR
DETECT Threshold
194
–100
200
206
100
mV
nA
V
DETECT Bias Current
RESET Output High Voltage
RESET Output Low Voltage
IOH = 100µA
IOL = -100µA
VOUT – 0.2
0.2
V
Note 1: Limits are guaranteed by 100% testing, sampling or correlation with worst case test conditions.
DATASHEET
July 2000
3
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
