ISL78310 Datasheet, PDF (5/13 Pages) Intersil Corporation – High Performance 1A LDO

ISL78310
Absolute Maximum Ratings
VIN relative to GND (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
VOUT relative to GND (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
PG, ENABLE, SENSE/ADJ, SS
Relative to GND (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
Recommended Operating Conditions (Notes 9, 10)
Junction Temperature Range (T_J) (Note 9) . . . . . . . . . . . .-40°C to +125°C
VIN relative to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.2V to 6V
VOUT range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mV to 5V
PG, ENABLE, SENSE/ADJ, SS relative to GND . . . . . . . . . . . . . . . 0V to +6V
PG Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mA
Thermal Information
Thermal Resistance . . . . . . . . . . . . . . . . . . . . θ_JA (°C/W) θ_JC (°C/W)
10 Ld DFN Package (Notes 7, 8) . . . . . . . .
48
7
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 2500V
Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . . . 250V
Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . . 1000V
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:
6. Absolute maximum voltage rating is defined as the voltage applied for a lifetime average duty cycle above 6V of 1%.
7. 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.
8. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
9. Extended operation at these conditions may compromise reliability. Exceeding these limits will result in damage. Recommended operating conditions
define limits where specifications are guaranteed.
10. Electromigration specification defined as lifetime average junction temperature of +110°C where max rated DC current = lifetime average current.
Electrical Specifications Unless otherwise noted, V_IN = V_OUT + 0.4V, V_OUT = 1.8V, C_IN = C_OUT = 10µF, T_J = +25°C, I_LOAD = 0A.
Applications must follow thermal guidelines of the package to determine worst case junction temperature. Please refer to “ISL78310 Schematic
Block Diagram” on page 4 and Tech Brief TB379. Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 11) TYP (Note 11)
UNITS
DC CHARACTERISTICS
DC Output Voltage Accuracy
Feedback Pin (ADJ Option Only)
DC Input Line Regulation
DC Output Load Regulation
Feedback Input Current
Ground Pin Current
Ground Pin Current in Shutdown
Dropout Voltage (Note 12)
Output Short Circuit Current
Thermal Shutdown Temperature
V_OUT
V_ADJ
ΔV_OUT/
ΔV_IN
ΔV_OUT/
ΔI_OUT
I_Q
I_SHDN
V_DO
OCP
TSD
V_OUT Options: 0.8V, 1.2V, 1.5V and 1.8V
2.2V ≤ V_IN < 3.6V; 0A < I_LOAD ≤ 1A
V_OUT Options: 2.5V, 3.3V and 5.0V
V_OUT + 0.4V ≤ V_IN ≤ 6V; 0A < I_LOAD < 1A
2.2V ≤V_IN ≤ 6V, 0A < I_LOAD < 1A
V_OUT + 0.5V < V_IN < 5V
0A < I_LOAD < 1A, All voltage options
V_ADJ = 0.5V
I_LOAD = 0A, 2.2V < V_IN < 6V
I_LOAD = 1A, 2.2V < V_IN < 6V
ENABLE Pin = 0V, V_IN = 6V
I_LOAD = 1A, V_OUT = 2.5V
V_OUT = 0V, 2.2V < V_IN < 6V
2.2V < V_IN < 6V
-1.8
0.2
1.8
%
-1.8
0.2
1.8
%
491
500
509
mV
1
%
-1
%
0.01
1
µA
3
5
mA
5
7
mA
0.2
12
µA
130
212
mV
1.75
A
160
°C
Thermal Shutdown Hysteresis
(Rising Threshold)
TSDn ^{2.2V < V}IN ^{< 6V}
30
°C
AC CHARACTERISTICS
Input Supply Ripple Rejection
Output Noise Voltage
PSRR
f = 1kHz, I_LOAD = 1A; V_IN = 2.2V
f = 120Hz, I_LOAD = 1A; V_IN = 2.2V
I_LOAD = 1A, BW = 10Hz < f < 100kHz
58
dB
72
dB
63
µV_RMS
5
FN7810.0
February 17, 2011