参数资料
| 型号： | MC34712EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER DDR 24QFN |
| 标准包装： | 2,500 |
| 应用： | 转换器，DDR |
| 输入电压： | 3 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 0.7 V ~ 1.35 V |
| 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 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 带卷 (TR) |
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
Characteristics noted under conditions 3.0 V ? V IN ? 6.0 V, - 40 ? C ? T A ? 85 ? C, GND = 0 V, unless otherwise noted. Typical
values noted reflect the approximate parameter means at T A = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
IC INPUT SUPPLY VOLTAGE (VIN)
Input Supply Voltage Operating Range
Input DC Supply Current (11)
Normal Mode: SD = 1 & STBY = 1, Unloaded Outputs
Input DC Supply Current (11)
Standby Mode, SD = 1 & STBY = 0
Input DC Supply Current (11)
Shutdown Mode, SD = 0 & STBY = X
V IN
I IN
I INQ
I INOFF
3.0
-
-
-
-
-
-
-
6.0
25
15
100
V
mA
mA
μA
INTERNAL SUPPLY VOLTAGE OUTPUT (VDDI)
Internal Supply Voltage Range
V DDI
2.35
2.5
2.65
V
BUCK CONVERTER (PVIN, SW, GND, BOOT, INV, COMP)
High Side MOSFET Drain Voltage Range
P VIN
2.5
-
6.0
V
Output Voltage Adjustment Range
V OUT
0.7
-
1.35
V
Output Voltage
-
-1.0
-
1.0
%
Line Regulation (12)
Normal Operation, V IN = 3.0 to 6.0 V, I OUT = ±3.0 A
Load Regulation (12)
Normal Operation, I OUT = -3.0 to 3.0 A
Error Amplifier Common Mode Voltage Range (12),(15)
Output Under-voltage Threshold
Output Over-voltage Threshold
Continuous Output Current
Over-current Limit, Sinking and Sourcing
Short-circuit Current Limit
(Sourcing and Sinking)
High Side N-CH Power MOSFET (M3) R DS(ON) (12)
I OUT = 1.0 A, V BOOT - V SW = 3.3 V
Low Side N-CH Power MOSFET (M4) R DS(ON) (12)
I OUT = 1.0 A, V IN = 3.3 V
REG LN
REG LD
V REF
V UVR
V OVR
I OUT
I LIM
I SHORT
R DS(ON)HS
R DS(ON)LS
-1.0
-1.0
0.0
-8.0
1.5
-3.0
-
-
10
10
-
-
-
-
-
-
4.0
6.5
-
-
1.0
1.0
1.35
-1.5
8.0
3.0
-
-
50
50
%
%
V
%
%
A
A
A
m ?
m ?
Notes
11.
12.
13.
14.
15.
See section “MODES OF OPERATION”, page 14 has a detailed description of the different operating modes of the 34712
Design information only, this parameter is not production tested.
±1% is assured at room temperature.
Overall output accuracy is directly affected by the accuracy of the external feedback network, 1% feedback resistors are recommended.
The 1% output voltage regulation is only guaranteed for a common mode voltage range greater than or equal to 0.7 V at room
temperature.
34712
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
7
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