ISL62881 Datasheet, PDF (5/35 Pages) Intersil Corporation – Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

ISL62881, ISL62881B
Absolute Maximum Ratings
Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . .-0.3V to +7V
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . +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 BOOT
. . . . . . . . . PHASE-5V (<20ns Pulse Width, 10µJ) to BOOT
LGATE Voltage (LGATE) . . . . . . . . -0.3V (DC) to VDD + 0.3V
. . . . . . . . . -2.5V (<20ns Pulse Width, 5µJ) to VDD + 0.3V
All Other Pins. . . . . . . . . . . . . . . . . . -0.3V to (VDD + 0.3V)
Open Drain Outputs, PGOOD, VR_TT#, CLK_EN#
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +7V
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)θ_JA (°C/W) θ_JC (°C/W)
28 Ld TQFN Package. . . . . . . . . . .
40
3
32 Ld TQFN Package. . . . . . . . . . .
32
3
Maximum Junction Temperature . . . . . . . . . . . . . . . +150°C
Maximum 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, VDD . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . +5V to 25V
Ambient Temperature . . . . . . . . . . . . . . . -10°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, f_SW = 300kHz, unless otherwise
noted. Boldface limits apply over the operating temperature range, -10°C to
+100°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
INPUT POWER SUPPLY
+5V Supply Current
I_VDD
VR_ON = 1V
VR_ON = 0V
3.2
4.0
mA
1
µA
Battery Supply Current
V_IN Input Resistance
Power-On-Reset Threshold
SYSTEM AND REFERENCES
I_VIN
R_VIN
POR_r
POR_f
VR_ON = 0V
VR_ON = 1V
V_DD rising
V_DD falling
1
µA
900
kΩ
4.35 4.5
V
4.00 4.15
V
System Accuracy
%Error (V_{CC_CORE}) No load; closed loop, active mode range
VID = 0.75V to 1.50V
-0.5
+0.5
%
VID = 0.5V to 0.7375V
-8
+8
mV
VID = 0.3V to 0.4875V
-15
+15
mV
V_BOOT
Maximum Output Voltage
Minimum Output Voltage
(Note 6)
V_{CC_CORE(max)}
V_{CC_CORE(min)}
VID = [0000000]
VID = [1111111]
1.0945 1.100 1.1055 V
1.500
V
0
V
R_BIAS Voltage
CHANNEL FREQUENCY
R_BIAS = 147kΩ
1.45 1.47 1.49
V
Nominal Channel Frequency
Adjustment Range
f_SW(nom)
RF_SET = 7kΩ, V_COMP = 1V
295 310 325
kHz
200
500
kHz
AMPLIFIERS
Current-Sense Amplifier
Input Offset
I_FB = 0A
-0.15
+0.15 mV
Error Amp DC Gain (Note 6)
Error Amp Gain-Bandwidth
Product (Note 6)
A_v0
GBW
C_L = 20pF
90
dB
18
MHz
5
FN6924.0
October 26, 2009