ISL6228_14 Datasheet, PDF (4/16 Pages) Intersil Corporation – High-Performance Dual-Output Buck Controller for Notebook Applications

ISL6228
Absolute Voltage Ratings
VIN_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
VCC, PGOOD_1,2 to GND . . . . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
PVCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
EN_1,2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC +3.3V
VO_1,2, FB_1,2, FSET_1,2 . . . . . . . . . . . . . . -0.3V to GND, VCC +0.3V
PHASE_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V
(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V
BOOT_1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT_1,2 to PHASE_1,2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
UGATE_1,2 . . . . . . . . . . . . (DC) -0.3V to PHASE_1,2, BOOT_1,2 +0.3V
(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V
LGATE_1,2 . . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, PVCC +0.3V
(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ_JA (°C/W) θ_JC (°C/W)
TQFN Package . . . . . . . . . . . . . . . . . .
40
3
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C
Operating Temperature Range . . . . . . . . . . . . . . . .-40°C to +100°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range. . . . . . . . . . . . . . . . . .-10°C to +100°C
Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 3.3V to 25V
VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5%
PVCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±5%
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:
1. 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.
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
3. Limits established by characterization and are not production tested.
Electrical Specifications
These specifications apply for T_A = -40°C to +100°C; All typical specifications T_A = +25°C, VCC = 5V,
PVCC = 5V; Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified.
Temperature limits established by characterization and are not production tested.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
VIN
VIN Input Bias Current
VIN Shutdown Current
VCC and PVCC
I_VIN
EN = 5V, VIN = 15V
I_{VIN_SHDN} EN = GND, VIN = 25V
-
16
-
µA
-
0.1 1.0 µA
VCC Input Bias Current in Single-Channel I_{VCC_S} EN₁ = 5V, FB₁ = 0.65V, VIN₁ = 3.3V to 25V,
EN₂ = GND, FB₂ = GND, VIN₂ = GND
VCC Input Bias Current in Dual Channel
I_{VCC_D} EN₁ = 5V, FB₁ = 0.65V, VIN₁ = 3.3V to 25V,
EN₂ = 5V, FB₂ = 0.65V, VIN₂ = 3.3V to 25V
VCC Shutdown Current
I_{VCC_SHDN} EN₁ = GND, EN₂ = GND, VCC = 5V
PVCC Shutdown Current
I_{PVCC_SHDN} EN₁ = GND, EN₂ = GND, PVCC = 5V
VCC POR THRESHOLD
-
1
-
mA
-
2
-
mA
-
0.1 1.0 µA
-
0.1 1.0 µA
Rising VCC POR Threshold Voltage
Falling VCC POR Threshold Voltage
REGULATION
V_{VCC_THR}
T_A = -10°C to +100°C
V_{VCC_THF}
T_A = -10°C to +100°C
4.33 4.45 4.55 V
4.35 4.45 4.55 V
4.08 4.20 4.30 V
4.10 4.20 4.30 V
Reference Voltage
Regulation Accuracy
V_REF
Close loop
-
0.6
-
V
-1
-
+1
%
PWM
Frequency Range
Frequency-Set Accuracy
VO Range
VO Input Leakage
f_SW
V_VO
I_VO
f_SW = 300kHz
EN = 5V, VO = 0.60V
EN = 5V, VO = 5V
200
-
600 kHz
-12
-
+12
%
0.60
-
5
V
-
1
-
µA
-
7.0
-
µA
EN = 0V, VO = 5V
-
0.1
-
µA
4
FN9095.2
May 7, 2008