Datasheet

MAX8530/MAX8531
Dual Low-Dropout Linear Regulators
with RESET or Low-Noise Output in UCSP or QFN
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(IN = 3.8V, SHDN = IN, C
BP
= 10nF (MAX8531), T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Note 2)
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, RESET, BP to GND .................................-0.3V to +7V
OUT1, OUT2 to GND...................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration ........................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
6-Bump UCSP (derate 3.9mW/°C above +70°C) ........308mW
6-Lead QFN (derate 24.4mW/°C above +70°C) ........1951mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
6-Bump+ UCSP Solder Profile ....................................(Note 1)
6-Lead QFN Lead Temperature (10s) .........................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Input Voltage V
IN
2.5 6.5 V
Undervoltage Lockout Threshold
V
UVLO
IN rising, hysteresis is 40mV (typ)
2.15 2.25 2.42
V
T
A
= +25°C, I
OUT1
= I
OUT2
= 1mA -1 +1
T
A
= -40°C to +85°C, I
OUT1
= I
OUT2
= 1mA -2 +2
Output Voltage Accuracy
T
A
= - 40°C to + 85° C , I
OU T 1
= 0.1m A to 200m A,
I
OU T 2
= 0.1m A to 150m A
-3 +3
%
OUT1
200
Maximum Output Current I
OUT_
OUT2
150
mA
OUT1
210 330 550
Current Limit I
LIM
OUT2
165 280 500
mA
No load
130 220
Ground Current I
Q
I
OUT1
= I
OUT2
= 100mA
150
µA
Dropout Voltage
V
OUT_
- V
IN
I
OUT_
= 100mA (Note 3)
100 200
mV
Line Regulation ΔV
LNR
IN = (OUT_ + 0.1V) to 3.8V
-0.2 +0.2
%/V
MAX8530
320
Output Voltage Noise
10Hz to 100kHz, C
OUT
= 10µF,
I
OUT
= 10mA
MAX8531 40
µV
RMS
MAX8530 60
Ripple Rejection PSRR 100Hz, I
OUT
= 30mA
MAX8531 62
dB
SHUTDOWN
SHDN = 0, T
A
= +25°C
0.01
1
SHDN Supply Current I
OFF
SHDN = 0, T
A
= +85°C 0.1
µA
V
IH
Input high voltage 1.6
SHDN Input Threshold
V
IL
Input low voltage 0.4
V
T
A
= +25°C
0.7
100
SHDN Input Bias Current I
SHDN
SHDN = IN or GND
T
A
= +85°C
0.8
nA
THERMAL PROTECTION
Thermal-Shutdown Temperature
T
SHDN
T
J
rising
160
°C
Thermal-Shutdown Hysteresis
ΔT
SHDN
10 °C
Note 1: For UCSP solder profile information, visit www.maxim-ic.com/1st_pages/UCSP.html.