参数资料
| 型号： | ISL8033IRZ |
| 厂商： | Intersil |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 3A DL 24QFN |
| 标准包装： | 75 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 6 V |
| 输入电压： | 2.85 V ~ 6 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.1MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 24-QFN（4x4） |
ISL8033, ISL8033A
Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions:
T A = -40°C to +85°C, V IN = 3.6V, EN1 = EN2 = VDD, L = 1.5μH, C1 = C2 = C4 = 2x22μF, I OUT1 = I OUT2 = 0A to 3A. Typical values are at T A = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
MIN
MAX
PARAMETER
Positive Peak Overcurrent Limit
Negative Peak Overcurrent Limit
SYMBOL
I poc1
I poc2
I poc1
I poc2
I poc1
I poc2
I noc1
I noc2
ISET = VDD
ISET = Float
ISET = GND
TEST CONDITIONS
(Note 7)
4.1
4.1
4.1
2.7
2.7
2.7
-3.5
-3.5
TYP
4.8
4.8
4.8
3.3
3.3
3.3
-2.5
-2.5
(Note 7)
5.5
5.5
5.5
3.9
3.9
3.9
-1.5
-1.5
UNITS
A
A
A
A
A
A
A
A
LX1, LX2
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
LX_ Maximum Duty Cycle
VIN = 6V, I O = 200mA
VIN = 2.85V, I O = 200mA
VIN = 6V, I O = 200mA
VIN = 2.85V, I O = 200mA
50
70
50
70
100
75
100
75
100
m Ω
m Ω
m Ω
m Ω
%
PWM Switching Frequency
Synchronization Range
F S
F SYNC
ISL8033
ISL8033A
ISL8033 (Note 6)
0.88
2.15
2.64
1.1
2.5
1.32
2.85
6
MHz
MHz
MHz
Channel 1 to Channel 2 Phase Shift
LX Minimum On-Time
Rising edge to rising edge timing
SYNC = High (forced PWM mode)
180
140
°
ns
Soft Discharge Resistance
LX Leakage Current
R DIS
EN = LOW
Pulled up to 6V
80
100
0.1
120
1
Ω
μA
PG1, PG2
Output Low Voltage
Sinking 1mA, VFB = 0.7V
0.3
V
PG_ Pin Leakage Current
PG = VIN = 6V
0.01
0.1
μA
Internal PGOOD Low Rising Threshold
Internal PGOOD Low Falling Threshold
Percentage of nominal regulation voltage
Percentage of nominal regulation voltage
89.5
85
92
88
94.5
91
%
%
Delay Time (Rising Edge)
1
ms
Internal PGOOD Delay Time (Falling Edge)
7
10
μs
EN1, EN2, SYNC
Logic Input Low
Logic Input High
1.5
0.4
V
V
SYNC Logic Input Leakage Current
Enable Logic Input Leakage Current
I SYNC
I EN
Pulled up to 6V
Pulled up to 6V
0.1
0.1
1
1
μA
μA
Thermal Shutdown
Thermal Shutdown Hysteresis
150
25
°C
°C
NOTES:
6. The operational frequency per switching channel will be half of the SYNC frequency.
7. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
7
FN6854.2
March 24, 2011
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