Datasheet

High PSRR, Low-Dropout, 150mA
Linear Regulators
2 Maxim Integrated
MAX8891/MAX8892
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+ 0.5V, T
A
= -40°C to +85°C, unless otherwise noted. C
IN
= 1µF, C
OUT
= 1µF. Typical values are at T
A
= +25°C; the
MAX8892 is tested with 2.45V output, unless otherwise noted.) (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 to GND .................................................................-0.3V to +7V
Output Short-Circuit Duration.....................................Continuous
OUT, SHDN to GND ....................................-0.3V to (V
IN
+ 0.3V)
FB, BP, N.C. to GND ................................-0.3V to (V
OUT
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)..............0.247W
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
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SC70
Junction-to-Ambient Thermal Resistance (θ
JA
) .........324°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ..............115°C/W
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage Range V
IN
2 6 V
Output Voltage Accuracy
I
OUT
= 100μA to 80mA -3 +3
%
Maximum Output Current I
OUT
150 mA
Current Limit I
LIM
I
OUT
= 90% of nominal value 200 mA
V
OUT
 3V, I
OUT
= 120mA 120
2.5V  V
OUT
< 3V, I
OUT
= 120mA 135
Dropout Voltage (Note 3)
2V  V
OUT
< 2.5V, I
OUT
= 120mA 180
mV
Ground Current I
Q
I
OUT
= 0.05mA 40 μA
Line Regulation V
LNR
V
IN
= (V
OUT
+ 0.5V) to 6V, I
OUT
= 0.1mA 0.001 %/V
Load Regulation V
LDR
I
OUT
= 1mA to 80mA 0.003 %/mA
T
A
= +25°C 0.003 1
Shutdown Supply Current I
SHDN
V
SHDN
= 0V
T
A
= +85°C 0.05
μA
Ripple Rejection PSRR
f = 10kHz, I
OUT
= 10mA 65
dB
Output Noise Voltage (RMS)
f = 100Hz to 100kHz, I
LOAD
= 80mA 230
μV
SHDN Logic-Low Level V
IN
= 2V to 6V 0.4 V
SHDN Logic-High Level V
IN
= 2V to 6V 1.5 V
T
A
= +25°C
SHDN Input Bias Current
V
IN
= 6V,
V
SHDN
= 0V or 6V
T
A
= +85°C 0.01
μA
T
A
= +25°C 0.006 0.1
FB Input Bias Current
(MAX8892)
V
IN
= 6V,
V
FB
= 1.3V
T
A
= +85°C 0.01
μA
Thermal Shutdown 160 °C
Thermal-Shutdown Hysteresis 10 °C
Note 2: Limits are 100% tested at T
A
= +25°C. Limits over operating temperature range are guaranteed by design.
Note 3: Dropout is defined as V
IN
- V
OUT
when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+ 0.5V.
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial
.