ISL6277A Datasheet, PDF (12/38 Pages) Intersil Corporation – Multiphase PWM Regulator for AMD Fusion Mobile CPUs Using SVI 2.0

ISL6277A
Absolute Maximum Ratings
Supply Voltage, V_DD, V_DDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Battery Voltage, V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +28V
Boot Voltage (BOOT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
Boot to Phase Voltage (BOOT-PHASE) . . . . . . . . . . . . . . . . -0.3V to +7V(DC)
-0.3V to +9V (<10ns)
Phase Voltage (PHASE) . . . . . . . . . . . . . . . . -7V (<20ns Pulse Width, 10µJ)
UGATE Voltage (UGATE) . . . . . . . . . .PHASE - 0.3V (DC) to BOOTPHASE - 5V
(<20ns Pulse Width, 10µJ) to BOOT LGATE Voltage
-2.5V (<20ns Pulse Width, 5µJ) to VDD + 0.3V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VDD + 0.3V)
Open Drain Outputs, PGOOD, PGOOD_NB, VR_HOT_L. . . . . . . -0.3V to +7V
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W) θ_JC (°C/W)
48 Ld QFN Package (Notes 4, 5) . . . . . . . .
29
3.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . .+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
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Battery Voltage, V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 25V
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . HRZ-10°C to +100°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IRZ-40°C to +100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-10°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:
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 Operating Conditions: V_DD = 5V, T_A = -10°C to +100°C (HRZ), T_A = -40°C to +100°C (IRZ), f_SW = 300kHz,
unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +100°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
INPUT POWER SUPPLY
+5V Supply Current
I_VDD
ENABLE = 1V
ENABLE = 0V
8
11
mA
1
µA
Battery Supply Current
V_IN Input Resistance
POWER-ON-RESET THRESHOLDS
I_VIN
R_VIN
ENABLE = 0V
ENABLE = 1V
1
µA
620
kΩ
VDD POR Threshold
SYSTEM AND REFERENCES
VDD_POR_r
VDD_POR_f
V_DD rising
V_DD falling
4.35
4.5
V
4.00
4.15
V
System Accuracy
HRZ
No load; closed loop, active mode range,
-0.5
%Error (V_OUT) VID = 0.75V to 1.55V
VID = 0.25V to 0.74375V
-10
+0.5
%
+10
mV
IRZ
No load; closed loop, active mode range,
-0.8
%Error (V_OUT) VID = 0.75V to 1.55V
VID = 0.25V to 0.74375V
-12
+0.8
%
+12
mV
Maximum Output Voltage
Minimum Output Voltage
CHANNEL FREQUENCY
V_OUT(max)
V_OUT(min)
VID = [00000000]
VID = [11111111]
1.55
V
0.0
V
Nominal Channel Frequency
Adjustment Range
f_SW(nom)
280
300
320
kHz
300
450
kHz
AMPLIFIERS
Current-Sense Amplifier Input Offset
Error Amp DC Gain
Error Amp Gain-Bandwidth Product
HRZ
IRZ
A_v0
GBW
I_FB = 0A
I_FB = 0A
C_L = 20pF
-0.15
+0.15
mV
-0.20
+0.20
mV
119
dB
17
MHz
12
FN8322.0
December 19, 2012