ML4866
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
IN ...................................................................................................
7V
Voltage on any other pin ......... GND - 0.3V to V
IN
+ 0.3V
Peak Switch Current (I
PEAK
) ......................................... 2A
Average Switch Current (I
AVG
) ..................................... 1A
Junction Temperature .............................................. 150ºC
Storage Temperature Range ....................... -65ºC to 150ºC
Lead Temperature (Soldering 10 Sec.) ..................... 260ºC
Thermal Resistance (q
JA
) .................................... 160ºC/W
OPERATING CONDITIONS
Temperature Range
ML4866CS ................................................. 0ºC to 70ºC
ML4866ES .............................................. -20ºC to 70ºC
ML4866IS ............................................... -40ºC to 85ºC
V
IN
Operating Range ................................... 3.5V to 6.5V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V
IN
= 5V, L = 50µH, C
OUT
= 100µF, R
COMP
= 390kW, C
COMP
= 15nF,
T
A
= Operating Temperature Range (Note 1)
SYMBOL
REFERENCE
V
REF
Output Voltage
0 < I(V
REF
) < –5µA, I
OUT
= 0mA
1.22
1.25
1.27
V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PWM REGULATOR
f
OSC
Oscillator Initial Accuracy
Oscillator Total Variation
Soft Start V
IN
to V
OUT
Delay
BURST Burst Mode Threshold
BURST PWM Mode Threshold
BURST Bias Current
Output Voltage
I
OUT
= 200mA
I
OUT
= 20mA,
BURST
= 0V
Line Regulation
Load Regulation
V
IN
= 4V to 6.5V, T
A
= 25°C
I
OUT
= 100mA to 500mA,
T
A
= 25°C
I
OUT
= 5mA to 100mA,
BURST
= 0V, T
A
= 25°C
Temperature Stability
Total Variation
T
A
= -40°C to 85°C
Line, Load, Temp
3.2
3.28
3.3
3.38
250
I
OUT
= 200mA, T
A
= 25°C
Line and Temp
100
90
115
130
3
400
500
850
35
3.4
3.48
±2
±2.5
±2.5
±1
±5
165
185
5
kHz
kHz
ms
mV
mV
µA
V
V
%
%
%
%
%
SHUTDOWN
UVLO Startup Threshold
UVLO Shutdown Threshold
SHDN
Threshold
SHDN
Bias Current
3.2
2.9
2
–5
3.5
3.1
V
V
V
µA
3
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
