MIC2042/2043
Micrel
Absolute Maximum Ratings
(1)
Supply Voltage
V
IN
and V
BIAS .............................................................................
6V
/FAULT, PWRGD Output Voltage ................................... 6V
/FAULT, PWRGD Output Current .............................. 25mA
Junction Temperature (T
J
) ...................... Internally Limited
ESD Rating
(3)
Human Body Model ................................................... 3kV
Machine Model ........................................................ 200V
Operating Ratings
(2)
Supply Voltage
V
IN
............................................................... 0.8V to 5.5V
V
BIAS
........................................................... 1.6V to 5.5V
Continuous Output Current ................................ 0.5A to 3A
Ambient Temperature (T
A
) ........................... –40°C to 85°C
Package Thermal Resistance
SOP (θ
JA
) .......................................................... 160°C/W
TSSOP (θ
JA
) ....................................................... 85°C/W
Electrical Characteristics
(4)
V
IN
= V
BIAS
= 5V; T
A
= 25°C unless specified otherwise.
Bold
indicates –40°C to +85°C.
Symbol
V
IN
V
BIAS
I
BIAS
Parameter
Switch Input Voltage
Condition
V
IN
≤
V
BIAS
(14-pin TSSOP)
No load
No load
V
IL
(max)
V
IH
(min)
V
ENHYST
I
EN
R
DS(ON)
I
LEAK
CLF
Enable Input Threshold Hysteresis
Enable Input Current
Switch Resistance
Output Leakage Current
Current Limit Factor
(2)
V
EN
= 0V to 5.5V
V
IN
= V
BIAS
= 3V, 5V
I
OUT
= 500mA
Output off
V
IN
= 5V, 0.5V
≤
V
OUT
< 0.5V
IN
0.5A
≤
I
OUT
≤
3A
V
IN
= 3V, 0.5V
≤
V
OUT
< 0.5V
IN
0.5A
≤
I
OUT
≤
3A
V
TH
V
LATCH
I
LATCH
V
OL
I
OFF
V
UV
V
UVHYST
V
UVINTH
V
UVINHYST
PGREF and UVLOIN Threshold
Output Reset Threshold
Latched Output Off Current
Output Low Voltage
(/FAULT, PWRGD)
/FAULT, PWRGD Off Current
Undervoltage Lockout Threshold
V
IN
= V
BIAS
= 1.6V to 5.5V
(14-pin TSSOP)
V
IN
= 0.8V to 5.5V
V
OUT
rising (MIC2043)
Output latched off (MIC2043)
I
OL
(/FAULT) = 15mA
I
OL
(PWRGD) = 5mA
V
FAULT
= V
PWRGD
= 5V
V
IN
rising
V
IN
falling
Undervoltage Lockout
Threshold Hysteresis
UVLO Adjust Pin Threshold Voltage
V
IN
rising
V
IN
falling
UVLO Adjust Pin Threshold Hysteresis
Overtemperature Threshold
T
J
increasing
T
J
decreasing
205
185
1.30
1.20
1.45
1.35
100
225
205
20
140
120
245
225
1
1.58
1.50
µA
V
V
mV
mV
mV
mV
°C
°C
1
310
320
205
395
385
225
V
IN
–.0.2
3
5
0.4
–1
3.5
14-pin TSSOP
8-pin SOP
Bias Supply Voltage
VBIAS Supply Current - Switch OFF
VBIAS Supply Current - Switch ON
Note 5
Enable Input Voltage
Min
0.8
1.6
1.6
0.1
300
2.4
2.5
100
.01
40
1
60
10
485
450
245
Typ
Max
5.5
5.5
5.5
5
400
1.5
Units
V
V
V
µA
µA
V
V
mV
µA
mΩ
µA
A×Ω
A×Ω
mV
V
mA
V
V
EN
M0512-112603
4
January 2005
MICREL [ MICREL SEMICONDUCTOR ]
