ISL70002SEH Datasheet, PDF (8/23 Pages) Intersil Corporation – Rad Hard and SEE Hard 12A Synchronous Buck Regulator with Multi-Phase Current Sharing

ISL70002SEH
FSE
Absolute Maximum Ratings (Note 3)
AVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AGND - 0.3V to AGND + 6.2V
DVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND - 0.3V to DGND + 6.2V
LXx, PVINx (Note 8) . . . . . . . . . . . . . . . . . . . PGNDx - 0.3V to PGNDx + 6.2V
AVDD - AGND, DVDD - DGND . . . . . . . . . . . . . . . . . . . PVINx - PGNDx ± 0.3V
Signal pins (Note 6) . . . . . . . . . . . . . . . . . . . . . .AGND - 0.3V to AVDD + 0.3V
Digital control pins (Note 7) . . . . . . . . . . . . . . DGND - 0.3V to DVDD + 0.3V
PGOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND - 0.3V to DGND + 6.2V
SS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND - 0.3V to DGND + 2.5V
Thermal Information
Thermal Resistance
θ_JA (°C/W)
θ_JC (°C/W)
CQFP Package (Notes 4, 5) . . . . . . . . . . . . . 34
1.5
Operating Junction Temperature Range . . . . . . . . . . . . . -55°C to +150°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
AVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AGND + 3V to 5.5V
DVDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND + 3V to 5.5V
PVINx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PGNDx + 3V to 5.5V
AVDD - AGND, DVDD - DGND . . . . . . . . . . . . . . . . . . . PVINx - PGNDx ± 0.1V
Signal pins (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AGND to AVDD
Digital control pins (Note 7) . . . . . . . . . . . . . . . . . . . . . . . . . . DGND to DVDD
REF, SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Set
GND, TDI, TDO, TPGM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DGND
I_LXx (T_J ≤ +150°C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.2A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C
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:
3. Absolute Maximum Ratings assume operation in a heavy ion environment.
4. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board. See Tech Brief TB379 for details.
5. For θ_JC, the “case temp” location is the center of the package underside.
6. EN, FB, ISHx, ISHREFx, OCx, OCSSx, PORSEL and REF pins.
7. FSEL, GND, ISHCOM, ISHEN, ISHRSL, M/S, SYNC, SC0, SC1, TDI, TDO and TPGM pins.
8. The 6.2V absolute maximum rating must be met for a 20MHz bandwidth limited observation at the device pins. In addition, for a 600MHz bandwidth
limited observation, the peak transient voltage on PVINx (measured to PGNDx) must be less than 7.1V with a duration above 6.2 V of less than 10ns,
and the peak transient voltage on LXx (measured to PGNDx) must be less than 7.9V with a duration above 6.2 V of less than 10ns.
V
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).
PARAMETER
TEST CONDITIONS
MIN
(Note 10) TYP
MAX
(Note 10)
UNITS
POWER SUPPLY
Operating Supply Current (Current Share
Disabled)
Standby Supply Current (Current Share
Disabled)
Operating Supply Current (Current Share
Enabled, Current Share Master)
V_IN = 5.5V
V_IN = 3.6V
V_IN = 5.5V, EN = GND, ISHEN = GND
V_IN = 3.6V, EN = GND, ISHEN = GND
V_IN = ISHEN = 5.5V, ISHCOM = Open Circuit
70
105
mA
43
65
mA
2.5
6
mA
2
4
mA
70
120
mA
Operating Supply Current (Current Share
Enabled, Current Share Slave)
V_IN = ISHEN = ISHSL = 5.5V, ISHCOM Pulled to V_IN with
1kΩ, M/S = GND, ISHx = ISHREFx = -100µA,
SYNC = External 1MHz Clock
70
120
mA
Standby Supply Current (Current Share
Enabled, Current Share Slave)
V_IN = ISHEN = ISHSL = 5.5V, EN = M/S = GND,
SYNC = External 1MHz Clock
3.0
7
mA
V_IN = ISHEN = ISHSL = 5.5V, M/S = GND,
SYNC = External 1MHz Clock, ISHCOM = GND
7.3
11
mA
OUTPUT VOLTAGE & CURRENT
Reference Voltage
0.594
0.6
0.606
V
8
FN8264.1
April 5, 2012