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參數(shù)資料
| 型號： | SC471A |
| 廠商： | Semtech Corporation |
| 英文描述： | Synchronous Buck Controller with Multi-Level VOUT Transition Support |
| 中文描述： | 同步降壓控制器具有多層次VOUT電源支持過渡 |
| 文件頁數(shù)： | 3/27頁 |
| 文件大小： | 634K |
| 代理商： | SC471A |
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3
2006 Semtech Corp.
SC471/SC471A
www.semtech.com
POWER MANAGEMENT
Absolute Maximum Rating
Electrical Characteristics
Test Conditions: V
BAT
= 15V, V
OUT
= 1.5V, T
A
= 25
o
C, 0.1% resistor dividers; VCC = 5.0V.
Parameter
Symbol
Min
Max
Units
DH, BST to GND (DC)
DH, BST to GND (transient - 100nsec max)
-0.3
-2.0
+30
+33
V
DL to GND (DC)
DL to GND (transient - 100nsec max)
-0.3
-2.0
+6.0
+6.0
V
LX to GND (DC)
LX to GND (transient - 100nsec max)
-0.3
-2.0
+25
+28
V
BST to LX
-0.3
+6.0
V
RTN to GND
-0.3
+0.3
V
VCC to RTN
-0.3
+6.0
V
D0, D1, EN, FB, G0, G1, ILIM, PGOOD, VOUT to RTN
-0.3
VCC + 0.3
V
Operating Junction Temperature Range
T
J
-40
+125
o
C
Storage Temperature Range
T
STG
θ
JA
-65
+150
o
C
Thermal Resistance, Junction to Ambient
(1)
45
o
C/Watt
Peak IR Re
fl
ow Temperature, (10-40sec)
T
PKG
+260
o
C
ESD Rating (Human Body Model)
2
kV
Exceeding the speci
fi
cations below may result in permanent damage to the device or device malfunction. Operation outside of the parameters speci
fi
ed in the
Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device reliability.
Note:
1) Calculated from package in still air, mounted 3” x 4.5”, 4 layer FR4 PCB
with thermal vias under the exposed pad
per JESD51 standards.
Parameter
Conditions
25°C
-40° to 85°C
Units
Min
Typ
Max
Min
Max
Input Supplies
VBAT Input Voltage
3.0
25
V
VCC Input Voltage
4.5
5.5
V
VCC Shutdown Current
EN = 0V
1
5
μ
A
VCC Operating Current
FB > 0.8V
500
1000
μ
A
Controller
FB On-Time Threshold
0 to 85°C
0.75
0.7436
0.7564
V
-40 to 85°C
0.7425
0.7575
Output Voltage Adjust Range
(1)
0.75
5.25
V
D0/D1 Pull-Down Resistance
D0/D1 to RTN;
SC471 G0/G1 = 5V; SC471A G0/G1 = 0V
15
40
Ω
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相關代理商/技術參數(shù) |
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|---|---|
| SC471AEVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller with Multi-Level VOUT Transition Support |
| SC471AMLTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller with Multi-Level VOUT Transition Support |
| SC471EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller with Multi-Level VOUT Transition Support |
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| SC471MLTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller with Multi-Level VOUT Transition Support |
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