Datasheet

MAX1806
500mA, Low-Voltage Linear Regulator in µMAX
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT(SETPOINT)
+ 500mV or V
IN
= +2.25V whichever is greater, SET = GND, SHDN = IN, 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, SHDN, POK, SET to GND ...................................-0.3V to +6V
OUT to GND ................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Power-µMAX (derate 17mW/°C above +70°C).......1.3W
Operating Temperature .......................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage V
IN
2.25 5.5 V
Input Undervoltage Lockout V
UVLO
Rising, 40mV hysteresis 1.85 2.0 2.15 V
T
A
= +85°C, I
OUT
= 100mA -1 +1
T
A
= +85°C, I
OUT
= 1mA to 500mA -1.5 +1.5
Output Voltage Accuracy
(Preset Mode)
V
OUT
T
A
= 0°C to +85°C, I
OUT
= 1mA to 500mA,
V
IN
> V
OUT
+ 0.5V
-3 +3
%
Adjustable Output Voltage
0.8 4.5 V
T
A
= +85°C, I
OUT
= 100mA 790 810
T
A
= +85°C, I
OUT
= 1mA to 500mA 786 814
SET Voltage Threshold
(Adjustable Mode)
V
SET
T
A
= 0°C to +85°C, I
OUT
= 1mA to 500mA,
V
IN
> V
OUT
+ 0.5V
774 800 826
mV
Maximum Output Current I
OUT
500 m A
RM S
Short-Circuit Current Limit I
LIM
V
OUT
= 0V 700 1400 2300 mA
SET Dual Mode
™
Threshold 35 80 125 mV
SET Input Bias Current I
SET
V
SET
= +0.8V -100 +100 nA
I
OUT
= 1mA 210 400
Ground-Pin Current I
Q
I
OUT
= 500mA 575
µA
V
OUT
= +2.25V 259 384
V
OUT
= +2.8V 201 315Dropout Voltage (Note 1) I
OUT
= 500mA
V
OUT
= +4.0V 147 255
mV
Line Regulation ∆V
LNR
V
I N
fr om ( V
OU T
+ 100m V ) to 5.5V , I
L OA D
= 5m A 0 0.125 %/V
Load Regulation ∆V
LDR
I
OUT
= 1mA to 500mA 15.5 35 p p m /m A
Output Voltage Noise 10Hz to 1MHz, C
OUT
= 10µF (ESR < 0.1Ω) 300 µV
RMS
SHUTDOWN
Shutdown Supply Current I
OFF
SHD N = GND, V
IN
= 5.5V 0.02 5 µA
V
IH
1.6
SHD N Input Threshold
V
IL
0.6
V
SHD N Input Bias Current I
SHDN
SHD N = GND or IN 10 100 nA
Startup Time T
START
C
OUT
= 10µF, ti m e fr om SHD N hig h to P OK hig h40 µs
Dual Mode is a trademark of Maxim Integrated Products, Inc.