Datasheet

MAX8869
1A, Microcap, Low-Dropout,
Linear Regulator
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +2.7V or V
OUT(NOM)
+ 0.5V (whichever is greater), SHDN = IN, SS = open, SET = GND, C
OUT
= 1µF, 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, RST, SS to GND ......................................-0.3V to +6V
OUT, SET to GND ........................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration ........................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TSSOP-EP (derate 26.1mW/°C above +70°C)......2.0W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ...............................-65°C to 150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage Range V
IN
2.7 5.5 V
Input Undervoltage Lockout Typical hysteresis = 50mV 2.35 2.45 2.55 V
Output Voltage Accuracy I
OUT
= 1mA, T
A
= +85°C-11%
SET Regulation Voltage
(Adjustable Mode)
I
OUT
= 150mA, T
A
= +85°C 792 800 808 mV
Line Regulation ∆V
LNR
V
IN
= V
OUT
+ 0.5V to +5.5V, I
OUT
= 10mA 0.1 %/V
Load Regulation ∆V
LDR
I
OUT
= 1mA to 1A 0.8 1.5 %/A
Ad j ustab l e O utp ut V ol tag e Range
0.8 5 V
Maximum Output Current I
OUT
Continuous 1 A
RMS
Short-Circuit Current Limit I
LIM
V
OUT
= 0V 1.0 1.9 A
In-Regulation Current Limit I
LIM
V
SET
= 0.76V 2.0 4.0 A
SET Dual Mode Threshold 40 80 120 mV
SET Input Bias Current I
SET
V
SET
= +0.9V 50 300 nA
I
OUT
= 100µA 0.5 2.0
Ground Current I
GND
I
OUT
= 1A 2.5
mA
I
OUT
= 1mA, +2.7V < V
IN
< +5.5V 0.2
Dropout Voltage
(Note 1)
I
OUT
= 1A, V
OUT
= +3.3V (Note 2) 200 350
mV
Output Voltage Noise f = 10Hz to 1M Hz, C
OU T
= 1µF, I
OU T
= 150mA 150 µV
RMS
Power-Supply Rejection Ratio PSRR f = 100kHz, C
OUT
= 1µF 54 dB
Shutdown Supply Current I
OFF
SHDN = GND, V
IN
= +5.5V, V
OUT
= 0 0.1 10 µA
V
IH
1.6
SHDN Input Threshold
V
IL
+2.7V < V
IN
< +5.5V
0.6
V
SHDN Input Bias Current SHDN = GND or IN 0 0.1 µA
Soft-Start Charge Current I
SS
V
SS
= 0V 6 µA
RST Output Low Voltage I
SINK
= 1mA 0.1 V
IN Operating Voltage Range for
RST Valid
I
SINK
= 10µA 1.0 5.5 V
RST Leakage V
RST
= +5.5V 0.01 1 µA
RST Trip Level Referred to
Nominal V
OUT
Falling edge, typical hysteresis = 10mV 89 92 95 % OUT
RST Release Delay Rising edge 1 3 5.5 ms
Thermal Shutdown Threshold T
SHDN
Typical thermal hysteresis = +20°C +170
o
C
Dual Mode is a trademark of Maxim Integrated Products.