参数资料
| 型号： | ISL62875HRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 8/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 20UTQFN |
| 标准包装： | 3,000 |
| 系列： | Robust Ripple Regulator™ (R³) |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 550kHz |
| 电源电压： | 4.75 V ~ 5.25 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： | -10°C ~ 100°C |
| 封装/外壳： | 20-UFQFN |
| 包装： | 带卷 (TR) |
ISL62875
Absolute Maximum Ratings
VCC, PVCC, PGOOD to GND . . . . . . . . . . . . . -0.3V to +7.0V
VCC, PVCC to PGND . . . . . . . . . . . . . . . . . . -0.3V to +7.0V
GND to PGND . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
EN, SET0, SET1, SET2, VO,
VID0, VID1, FB, OCSET, SREF . . . -0.3V to GND, VCC + 0.3V
BOOT Voltage (V BOOT-GND ) . . . . . . . . . . . . . . . -0.3V to 33V
BOOT To PHASE Voltage (V BOOT-PHASE ) . . . -0.3V to 7V (DC)
-0.3V to 9V (<10ns)
PHASE Voltage . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 28V
GND -8V (<20ns Pulse Width, 10μJ)
UGATE Voltage . . . . . . . . . . . . V PHASE - 0.3V (DC) to V BOOT
V PHASE - 5V (<20ns Pulse Width, 10μJ) to V BOOT
LGATE Voltage . . . . . . . . . . GND - 0.3V (DC) to VCC + 0.3V
Thermal Information
Thermal Resistance (Typical) θ JA (°C/W)
20 Ld μTQFN Package (Notes 4, 5) . . . . . . . . 84
Junction Temperature Range . . . . . . . . . . . -55 ° C to +150 ° C
Operating Temperature Range . . . . . . . . . . -10 ° 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
Converter Input Voltage to GND . . . . . . . . . . . . 3.3V to 25V
VCC, PVCC to GND . . . . . . . . . . . . . . . . . . . . . . . . 5V ±5%
GND - 2.5V (<20ns Pulse Width, 5μJ) to VCC + 0.3V
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
These specifications apply for T A = -10°C to +100°C, unless otherwise stated.
All typical specifications T A = +25°C, VCC = 5V. Boldface limits apply over the operating
temperature range, -10°C to +100°C.
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 7) TYP (Note 7) UNIT
VCC and PVCC
VCC Input Bias Current
VCC Shutdown Current
PVCC Shutdown Current
I VCC
I VCCoff
I PVCCoff
EN = 5V, VCC = 5V, FB = 0.55V, SREF < FB
EN = GND, VCC = 5V
EN = GND, PVCC = 5V
-
-
-
1.1
0.1
0.1
1.5
1.0
1.0
mA
μA
μA
VCC POR THRESHOLD
Rising VCC POR Threshold Voltage
V VCC_THR
4.40
4.49
4.60
V
Falling VCC POR Threshold Voltage
V
VCC_THF
4.10
4.22
4.35
V
REGULATION
Reference Voltage
System Accuracy
V REF(int)
VID0 = VID1 = GND, PWM Mode = CCM
-
-0.75
0.50
-
-
+0.75
V
%
PWM
Switching Frequency
F SW
PWM Mode = CCM
450
500
550
kHz
VO
VO Input Voltage Range
V VO
0
-
3.6
V
VO Input Impedance
VO Reference Offset Current
VO Input Leakage Current
R VO
I VOSS
I VOoff
EN = 5V
V ENTHR < EN, SREF = Soft-Start Mode
EN = GND, VO = 3.6V
-
-
-
600
10
0.1
-
-
-
k Ω
μA
μA
ERROR AMPLIFIER
FB Input Bias Current
I FB
EN = 5V, FB = 0.50V
-20
-
+50
nA
SREF
SREF Operating Voltage Range
Soft-Start Current
V SREF
I SS
Nominal SREF Setting with 1% Resistors
SREF = Soft-Start Mode
0.5
10
-
20
1.5
30
V
μA
8
September 18, 2009
FN6905.1
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