MAX890L
1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +3V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN to GND ................................................................-0.3V to +6V
ON, FAULT to GND .................................................-0.3V to +6V
SET, OUT to GND ...................................... -0.3V to (V
IN
+ 0.3V)
Maximum Continuous Switch Current ..................................1.5A
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C) ..........................471mW
Operating Temperature Range
MAX890LESA ....................................................-40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10s) . ...............................+300°C
Soldering Temperature (reflow) .......................................+260°C
ON = IN, V
IN
= V
OUT
= 5.5V
V
IN
= 5V
V
IN
= 3V, I
OUT
= 500mA
V
IN
= 5V, ON = GND, I
OUT
= 0A
V
IN
= 5V, I
OUT
= 500mA
20% current overdrive, V
CC
= 5V
V
FAULT
= 5.5V, V
SET
= 1V
V
IN
= 2.7V to 3.6V
V
IN
= 2.7V to 5.5V
I
SINK
= 1mA, V
SET
= 1.4V
V
SET
= 1.24V, I
OUT
= 0A; V
IN
= V
OUT
I
OUT
= 500mA, V
OUT
> 1.6V
ON = IN, V
IN
= 5.5V, V
OUT
= 0V
Rising edge, 1% hysteresis
V
IN
= 4.5V
V
ON
= 5.5V
V
SET
required to turn the switch off (Note 1)
V
IN
= 4.5V to 5.5V
CONDITIONS
µs25Turn-Off Time
µs
185
Turn-On Time
120 200
µs2Fast-Current-Loop Response Time
µs5Slow-Current-Loop Response Time
µA0.05 1
FAULT Logic Output High Leakage Current
V0.4
FAULT Logic Output Low Voltage
µA0.5 3I
SET
Bias Current
µA0.01 1
ON Input Leakage Current
V
2.4
ON Input High Voltage
µA0.03 1Off-Supply Current
µA13 20
V2.7 5.5Operating Voltage
Quiescent Current
2.0
V0.8
ON Input Low Voltage
A/A970 1110 1300I
OUT
to I
SET
Current Ratio
A1.2Maximum Output Current Limit
µA0.04 15Off-Switch Current
V2.0 2.4 2.6Undervoltage Lockout
75 130
V1.178 1.240 1.302Current-Limit-Amplifier Threshold
UNITSMIN TYP MAXPARAMETER
V
IN
= 3.0V
mΩ
90 150
On-Resistance
