ISL70002SEH Datasheet, PDF (11/23 Pages) Intersil Corporation – Rad Hard and SEE Hard 12A Synchronous Buck Regulator with Multi-Phase Current Sharing

ISL70002SEH
Electrical Specifications Unless otherwise noted, V_IN = AVDD = DVDD = PVINx = EN = FSEL = M/S = SC0 = SC1= 3V to 5.5V;
GND = AGND = DGND = PGNDx = ISHx = ISHCOM = ISHEN = ISHREFx = ISHSL = TDI = TDO = TPGM = 0V; FB = 0.65V; PORSEL = V_IN for 4.5V ≤
V_IN ≤ 5.5V and GND for V_IN < 4.5V; LXx = SYNC = Open Circuit; OCx is connected to OCSSx with a 10kΩ resistor; OCx is connected to GND with
a 4.99kΩ resistor shunted by a 6.8nF capacitor; PGOOD is pulled up to V_IN with a 1kΩ resistor; REF is bypassed to GND with a 220nF capacitor;
SS is bypassed to GND with a 100nF capacitor; T_A = T_J = -55°C to +125°C; Post 100krad(Si). (Note 6). (Continued)
PARAMETER
TEST CONDITIONS
MIN
(Note 10) TYP
MAX
(Note 10)
UNITS
ISHSL Input Leakage Current
-1
1
µA
ISHSL Input High Voltage
ISHSL Input Low Voltage
V_IN - 0.5
1.3
V
1.2
0.5
V
SLOPE COMPENSATION
SC1 = SC0 = V_IN
SC1 = V_IN, SC0 = GND
SC1 = GND, SC0 = V_IN
SC1 = SC0 = GND
5.9
13.4
3.0
6.7
1.5
3.4
0.7
1.7
17.7
A/µs
8.8
A/µs
4.5
A/µs
2.2
A/µs
FSEL = GND, SC1 = SC0 = V_IN
FSEL = GND, SC1 = V_IN, SC0 = GND
FSEL = GND, SC1 = GND, SC0 = V_IN
FSEL = GND, SC1 = SC0 = GND
2.9
6.6
1.4
3.3
0.7
1.6
0.3
0.8
8.8
A/µs
4.5
A/µs
2.2
A/µs
1.2
A/µs
NOTES:
9. Typical values shown reflect T_A = T_J = +25°C operation and are not guaranteed.
10. Parameters with MIN and/or MAX limits are 100% tested at -55°C, +25°C and +125°C, unless otherwise specified.
11. Limits do not include tolerance of external feedback resistors. The 0A to 12A output current range may be reduced by Minimum LXx On Time and
Minimum LXx Off Time specifications.
12. Limits established by characterization or analysis and are not production tested.
13. Tested sequencially on LX2, LX6 and LX9.
14. Tested sequencially on LX2 and LX6 at 535mA to 735mA and 2.3A to 2.6A.
15. Tested in accordance with MIL-STD-883, method 1019, condition A.
11
FN8264.1
April 5, 2012