ISL78302 Datasheet, PDF (4/11 Pages) Intersil Corporation – Dual LDO with Low Noise, High Performance and Low IQ

ISL78302
Absolute Maximum Ratings
Supply Voltage (V_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7.1V
V_O1, V_O2 Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V_IN + 0.3)V
ESD Ratings
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . . . . . 2kV
Thermal Information
Thermal Resistance (Notes 5, 6)
θ_JA (°C/W) θ_JC (°C/W)
10 Ld 3x3 DFN Package . . . . . . . . . . . . . . .
59
18.5
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range (T_A) . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage (V_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
5. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
6. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and
temperature range of the device as follows: T_A = -40°C to +105°C; V_IN = (V_O + 0.5V) to 6.5V with a minimum V_IN of 2.3V; C_IN = 1µF; C_O = 1µF;
C_BYP = 0.01µF; C_POR = 0.01µF. Boldface limits apply over the operating temperature range, -40°C to +105°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 8) TYP (Note 8)
UNITS
DC CHARACTERISTICS
Supply Voltage
Ground Current
Shutdown Current
UVLO Threshold
Regulation Voltage Accuracy
Maximum Output Current
Internal Current Limit
Dropout Voltage (Note 7)
Thermal Shutdown Temperature
AC CHARACTERISTICS
V_IN
I_DD1
I_DD2
I_DDS
V_UV+
V_UV-
I_MAX
I_LIM
V_DO
T_SD+
T_SD-
Quiescent condition: I_O1 = 0µA; I_O2 = 0µA
One LDO active
Both LDO active
V_IN = V_O + 0.5V to 5.5V, I_O = 10µA to 300mA,
T_J = +25°C
V_IN = V_O + 0.5V to 5.5V, I_O = 10µA to 300mA,
T_J = -40°C to +125°C
Continuous
I_O = 300mA
I_O = 150mA
2.3
6.5
V
30
36
µA
47
55
µA
0.3
2.1
µA
1.9
2.1
2.3
V
1.6
1.8
2.0
V
-0.8
+0.8
%
-1.8
+1.8
%
300
mA
320 475
650
mA
300
mV
150
250
mV
145
°C
110
°C
Ripple Rejection
I_O = 10mA, V_IN = 2.8V(min), V_O = 1.5V,
C_BYP = 0.01µF
@ 1kHz
64
dB
@ 10kHz
51
dB
@ 100kHz
38
dB
4
FN7696.0
January 28, 2011