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参数资料
| 型号： | L4962E/A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 3.3 A SWITCHING REGULATOR, 150 kHz SWITCHING FREQ-MAX, PZFM7 |
| 封装： | HEPTAWATT-7 |
| 文件页数： | 10/16页 |
| 文件大小： | 461K |
| 代理商： | L4962E/A |
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
DYNAMIC CHARACTERISTICS
Vo
Output voltage range
Vi = 46V
Io = 1A
Vref
40
V
Vi
Input voltage range
Vo = Vref to 36V
Io = 1.5A
9
46
V
Vo
Line regulation
Vi = 10V to 40V
Vo = Vref
Io = 1A
15
50
mV
Vo
Load regulation
Vo = Vref
Io = 0.5A to 1.5A
8
20
mV
Vref
Internal reference voltage
(pin 10)
Vi = 9V to 46V
Io = 1A
5
5.1
5.2
V
Vref
T
Average temperature
coefficient of refer. voltage
Tj = 0
°C to 125°C
Io = 1A
0.4
mV/
°C
Vd
Dropout voltage
Io = 1.5A
1.5
2
V
Iom
Maximum operating load
current
Vi = 9V to 46V
Vo = Vref to 36V
1.5
A
I2L
Current limiting threshold
(pin 2)
Vi = 9V to 46V
Vo = Vref to 36V
2
3.3
A
ISH
Input average current
Vi = 46V;
output short-circuit
15
30
mA
η
Efficiency
f = 100KHz
Vo = Vref
70
%
Io = 1A
Vo = 12V
80
%
SVR
Supply voltage ripple
rejection
Vi = 2Vrms
fripple = 100Hz
Vo = Vref
Io = 1A
50
56
dB
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tj = 25
°C, Vi = 35V, unless otherwise
specified)
HEPTAWATT
POWERDIP
NAME
FUNCTION
4
4, 5, 12, 13
GROUND
Common ground terminal.
5
14
OSCILLATOR
A parallel RC network connected to this terminal
determines the switching frequency. This pin must be
connected to pin 7 input when the internal oscillator is
used.
6
15
SOFT START
Soft start time constant. A capacitor is connected
between this terminal and ground to define the soft start
time constant. This capacitor also determines the
average short circuit output current.
7
2
OUTPUT
Regulator output.
1, 3, 6,
8, 9, 16
N.C.
PIN FUNCTIONS (cont’d)
3/16
L4962
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L4962EH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.5A POWER SWITCHING REGULATOR |
| L4962EH/A | 功能描述:直流/直流开关调节器 5.0 to 40V Step-Down RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| L4963 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.5A SWITCHING REGULATOR |
| L4963D | 功能描述:直流/直流开关调节器 5.1 to 36V 1.5 Amp RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| L4963D013TR | 功能描述:直流/直流开关调节器 5.1 to 36V 1.5 Amp RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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