Rainbow Electronics MAX1976 - Manual (Page 3)

MAX1963/MAX1976
Low-Input-Voltage, 300mA LDO Regulators
with
RESET
in SOT and TDFN
_______________________________________________________________________________________ 3
Note 1: Limits are 100% production tested at T A = +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2: The dropout voltage is defined as V IN - V OUT , when V OUT is 4% lower than the value of V OUT when V IN = V OUT + 0.5V.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RESET OUTPUT
Reset Threshold Accuracy V OUT falling, (1.7% typical hysteresis) 80 82.5 85 %V OUT
I RESET = 100µA 1 100
RESET Output Low Voltage V OL
V IN = +1.0V, I RESET = 100µA 30 400
mV
T A = +25°C 0.001 1
RESET Output High Leakage I OH
V RESET = 3.6V,
RESET not asserted T A = +85°C 0.01
µA
MAX1963 2.2 3.2 5.5
Reset Delay t RP
From V OUT high to RESET
rising MAX1976 70 100 160
ms
THERMAL PROTECTION
Thermal-Shutdown Temperature T SHDN +165 °C
Thermal-Shutdown Hysteresis ∆T
SHDN 15 °C
Typical Operating Characteristics
(V
IN
= (V
OUT
+ 0.5V) or 1.8V, whichever is greater; SHDN = IN, C
IN
= 1µF, C
OUT
= 4.7µF, T
A
= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
MAX1963/76 toc01
LOAD CURRENT (mA)
OUTPUT VOLTAGE ACCURACY (%)
250 200 150 100 50
-0.1
0
0.1
0.2
-0.2
0 300
V OUT = +3.0V V OUT = +1.5V
V OUT = +0.75V
OUTPUT VOLTAGE ACCURACY
vs. INPUT VOLTAGE
MAX1963/76 toc02
INPUT VOLTAGE (V)
OUTPUT VOLTAGE ACCURACY (%)
3.0 2.6 2.2 1.8
-0.25
0
0.25
0.50
-0.50
1.4 3.4
I
OUT
= 300mA
I OUT = 100mA
I OUT = 0mA
V OUT = 1.5V
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX1963/76 toc03
TEMPERATURE ( °C)
OUTPUT VOLTAGE ACCURACY (%)
60 35 10 -15
-1.0
-0.5
0
0.5
1.0
1.5
-1.5
-40 85
V
OUT
= +1.5V
I OUT = 0mA, 100mA, 300mA
ELECTRICAL CHARACTERISTICS (continued)
(V IN = (V OUT + 0.5V) or 1.8V, whichever is greater; SHDN = IN, C IN = 1µF, C OUT = 4.7µF, T A = -40°C to +85°C, unless otherwise
noted. Typical values are at T A = +25°C.) (Note 1)