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参数资料
| 型号： | L5971D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 4/11页 |
| 文件大小： | 158K |
| 代理商： | L5971D |
PIN FUNCTIONS
DIP
SO (*)
Name
Function
1
2
GND
Ground
2
3
SS_INH
A logic signal (active low) disables the device (sleep mode operation).
A capacitor connected between this pin and ground determines the soft start time.
When this pin is grounded disables the device (driven by open collector/drain).
3
4
OSC
An external resistor connected between the unregulated input voltage and this pin and
a capacitor connected from this pin to ground fix the switching frequency. (Line feed
forward is automatically obtained)
4
5, 6
OUT
Stepdown regulator output
511
VCC
Not regulated DC input voltage
6
12
BOOT
A capacitor connected between this pin and OUT allows to drive the internal VDMOS
7
13
COMP
E/A output to be used for frequency compensation
8
14
FB
Stepdown feedback input. Connecting directly this pin to the output 1.26V is obtained; a
voltage divider is requested for higher output voltages
(*) Pins 1, 7, 8, 9, 10, 15 and 16 are not internally, electrically connected to the die.
PIN CONNECTIONS
GND
SS_INH
OSC
OUT
1
3
2
4
VCC
BOOT
COMP
FB
8
7
6
5
D97IN595
N.C.
GND
SS_INH
OSC
OUT
N.C.
OUT
N.C.
BOOT
VCC
COMP
FB
N.C.
1
3
2
4
5
6
7
8
14
13
12
11
10
9
15
16
D97IN596
INHIBIT
SOFTSTART
VOLTAGES
MONITOR
THERMAL
SHUTDOWN
E/A
PWM
1.26V
OSCILLATOR
R
S
Q
INTERNAL
REFERENCE
INTERNAL
SUPPLY
1.26V
5.1V
DRIVE
CBOOT
CHARGE
CBOOT
CHARGE
AT LIGHT
LOADS
2
7
8
FB
COMP
SS_INH
3
1
4
6
5
BOOT
OSC
GND
OUT
VCC
D98IN833
BLOCK DIAGRAM
Minidip
SO16W
L5971
2/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L5971D013TR | 制造商:STMicroelectronics 功能描述: |
| L5972 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2A SWITCH STEP DOWN SWITCHING REGULATOR |
| L5972D | 功能描述:直流/直流开关调节器 1.235 to 35V Step-Dn 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 |
| L5972D_0710 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2A switch step down switching regulator |
| L5972D013TR | 功能描述:直流/直流开关调节器 1.235 to 35V Step-Dn 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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