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参数资料
| 型号： | ISL6228IRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 28-TQFN |
| 标准包装： | 6,000 |
| 系列： | Robust Ripple Regulator™ (R³) |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 600kHz |
| 电源电压： | 3.3 V ~ 25 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 100°C |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
ISL6228
Absolute Voltage Ratings
Thermal Information
VIN 1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
Thermal Resistance (Typical, Notes 1, 2) θ JA (°C/W)
θ JC (°C/W)
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
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
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
I VIN
EN = 5V, VIN = 15V
-
16
-
μA
VIN Shutdown Current
I VIN_SHDN EN = GND, VIN = 25V
-
0.1
1.0
μA
VCC and PVCC
VCC Input Bias Current in Single-Channel
VCC Input Bias Current in Dual Channel
I VCC_S
I VCC_D
EN 1 = 5V, FB 1 = 0.65V, VIN 1 = 3.3V to 25V,
EN 2 = GND, FB 2 = GND, VIN 2 = GND
EN 1 = 5V, FB 1 = 0.65V, VIN 1 = 3.3V to 25V,
EN 2 = 5V, FB 2 = 0.65V, VIN 2 = 3.3V to 25V
-
-
1
2
-
-
mA
mA
VCC Shutdown Current
PVCC Shutdown Current
I VCC_SHDN EN 1 = GND, EN 2 = GND, VCC = 5V
I PVCC_SHDN EN 1 = GND, EN 2 = GND, PVCC = 5V
-
-
0.1
0.1
1.0
1.0
μA
μA
VCC POR THRESHOLD
Rising VCC POR Threshold Voltage
V VCC_THR
T A = -10°C to +100°C
4.33
4.35
4.45
4.45
4.55
4.55
V
V
Falling VCC POR Threshold Voltage
V
VCC_THF
T A = -10°C to +100°C
4.08
4.10
4.20
4.20
4.30
4.30
V
V
REGULATION
Reference Voltage
Regulation Accuracy
V REF
Close loop
-
-1
0.6
-
-
+1
V
%
PWM
Frequency Range
Frequency-Set Accuracy
VO Range
f SW
V VO
f SW = 300kHz
200
-12
0.60
-
-
-
600
+12
5
kHz
%
V
VO Input Leakage
I VO
EN = 5V, VO = 0.60V
EN = 5V, VO = 5V
EN = 0V, VO = 5V
-
-
-
1
7.0
0.1
-
-
-
μA
μA
μA
4
FN9095.2
May 7, 2008
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