ISL78302A_14 Datasheet, PDF (4/11 Pages) Intersil Corporation – Dual LDO with Low Noise, Very High PSRR and Low IQ

ISL78302A
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) . . . . . . . . . . . . . . . . 3000V
Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C101C) . . . . . . . . . . . . . . 1500V
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
10 Ld 3x3 DFN Package (Notes 4, 5). . . . .
59
18.5
Junction Temperature Range . . . . . . . . . . . . . -40°C to +125°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
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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:
4. 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.
5. 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 6) TYP (Note 6) UNITS
DC CHARACTERISTICS
Supply Voltage
V_IN
2.3
6.5
V
Ground Current
Quiescent condition: I_O1 = 0µA; I_O2 = 0µA
I_DD1 One LDO active
30 36
µA
I_DD2 Both LDO active
47 55
µA
Shutdown Current
I_DDS
0.3 2.1
µA
UVLO Threshold
V_UV+
1.9 2.1 2.3
V
V_UV-
1.6 1.8 2.0
V
Regulation Voltage Accuracy
V_IN = V_O + 0.5V to 5.5V, I_O = 10µA to 300mA, T_J = +25°C
-0.8
+0.8
%
V_IN = V_O + 0.5V to 5.5V, I_O = 10µA to 300mA, T_J = -40°C to +125°C -1.8
+1.8
%
Maximum Output Current
I_MAX Continuous
300
mA
Internal Current Limit
I_LIM
320 475 650 mA
Dropout Voltage (Note 7)
V_DO1 I_O = 300mA; V_O < 2.5V
450
mV
I_O = 150mA; V_O < 2.5V
225 250
V_DO2 I_O = 300mA; 2.5V ≤ V_O ≤ 2.8V
250
mV
I_O = 150mA; 2.5V ≤ V_O ≤ 2.8V
125 160
mV
V_DO3 I_O = 300mA; V_O > 2.8V
230
mV
I_O = 150mA; V_O > 2.8V
115 145
mV
Thermal Shutdown Temperature T_SD+
145
°C
T_SD-
110
°C
AC CHARACTERISTICS
Ripple Rejection
I_O = 10mA, V_IN = 2.8V(min), V_O = 1.8V, C_BYP = 0.1µF
@ 1kHz
90
dB
@ 10kHz
70
dB
@ 100kHz
50
dB
4
FN7932.1
December 23, 2013