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参数资料
| 型号： | ISL6420BIRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 9/21页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 20-QFN |
| 标准包装： | 1,000 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.4MHz |
| 占空比： | 100% |
| 电源电压： | 4.5 V ~ 28 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 ~ 85°C |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
ISL6420B
Electrical Specifications
Operating Conditions: VIN = 12V, PVCC shorted with VCC5, T A = +25°C. Boldface limits
apply over the operating temperature range, -40°C to +85°C. (Continued)
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 12)
TYP
(Note 12) UNITS
Buffered Output Voltage -
External Reference
V REFOUT
V REFIN = 1.25V, I REFOUT = 1mA,
VMSET2/MODE = High,
1.227
1.246
1.265
V
C REFOUT = 2.2μF
Buffered Output Voltage -
External Reference
V REFOUT
V REFIN = 1.25V, I REFOUT = 20mA,
VMSET2/MODE = High,
1.219
1.238
1.257
V
C REFOUT = 2.2μF
Current Drive Capability
C REFOUT = 2.2μF
20
-
-
mA
VOLTAGE MARGINING
Voltage Margining Range
-10
-
+10
%
(Note 10)
CDEL Current for Voltage
-
100
-
μA
Margining
Slew Time
ISET1 on FB Pin
CDEL = 0.1μF, VMSET = 330k Ω
VMSET = 330k,
-
-
2.5
7.48
-
-
ms
μA
GPIO1 = L
GPIO2 = H
ISET2 on FB Pin
VMSET = 330k,
-
7.48
-
μA
GPIO1 = H
GPIO2 = L
THERMAL SHUTDOWN
Shutdown Temperature
-
150
-
°C
(Note 10)
Thermal Shutdown Hysteresis
-
20
-
°C
(Note 10)
NOTES:
7. The operating supply current and shutdown current specifications for 5V input are the same as VIN supply current
specifications, i.e., 5.6V to 28V input conditions. These should also be tested with part configured for 5V input configuration,
i.e., VIN = VCC5 = PVCC = 5V.
8. This is the V CC current consumed when the device is active but not switching. Does not include gate drive current.
9. When the input voltage is 5.6V to 28V at VIN pin, the VCC5 pin provides a 5V output capable of 50mA (max) total from the
internal LDO. When the input voltage is 5V, VCC5 pin will be used as a 5V input, the internal LDO regulator is disabled and
the VIN must be connected to the VCC5. In both cases the PVCC pin should always be connected to VCC5 pin (refer to “Pin
10. Limits established by characterization and are not production tested.
11. It is recommended to use VCC5 as the pull-up source.
12. 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.
9
FN6901.1
December 4, 2009
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