ML4950
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.
V
OUT ...............................................................................................
7V
Voltage on Any Other Pin ..... GND - 0.3V to V
OUT
+ 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) ...................... 150ºC
Thermal Resistance (q
JA
) .................................... 160ºC/W
OPERATING CONDITIONS
Temperature Range
ML4950CS-X .............................................. 0ºC to 70ºC
ML4950ES-X ........................................... -20ºC to 70ºC
V
IN
Operating Range
ML4950CS-X ................................. 1.0V to V
OUT
- 0.2V
ML4950ES-X ................................. 1.1V to V
OUT
- 0.2V
V
OUT
Operating Range ....................................... 2V to 3V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V
IN
= Operating Voltage Range, T
A
= Operating Temperature Range (Note 1)
SYMBOL
SUPPLY
I
IN
I
OUT(Q)
I
L(Q)
V
IN
Current
V
OUT
Quiescent Current
V
L
Quiescent Current
V
IN
= V
OUT
- 0.2V
50
8
60
10
1
µA
µA
µA
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PFM REGULATOR
t
ON
V
SENSE
Pulse Width
SENSE Compator Threshold Voltage
Load Regulation
Undervoltage Lockout Threshold
RESET
COMPARATOR
DETECT Threshold Voltage
DETECT Bias Current
RESET Output High Voltage
RESET Output Low Voltage
Note 1:
4.5
196
See Figure 1
V
IN
= 1.2V, I
OUT
£
25mA
2.425
5
201
2.5
0.85
5.5
208
2.575
0.95
µs
mV
V
V
194
-100
I
OH
= -100µA
I
OL
= 100µA
V
OUT
-0.2
200
206
100
mV
nA
V
0.2
V
Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
3
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
