- 您现在的位置：买卖IC网 > PDF目录53603 > L5988 (STMICROELECTRONICS) SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16 PDF资料下载
参数资料
| 型号： | L5988 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | LEAD FREE, HTSSOP-16 |
| 文件页数： | 3/8页 |
| 文件大小： | 78K |
| 代理商： | L5988 |
L5988
2 Pin Connections and Functions
3/8
2
Pin Connections and Functions
Figure 1.
Pin Connection ( Top view)
Table 1.
Pin Functions
No
Name
Description
2,3,4
VCC
Unregulated DC input voltage.
1,16
VOUT
Regulator output.
13,14,15
GND
Ground.
9
SYNCH
It is a Master-Slave pin. Two or more devices can be synchronized by simply
connecting the SYNCH pins together. The device operating with the highest FSW
will be the Master. The Slave devices will operate with 180° phase shift from the
Master.
10
FSW
Connecting an external resistor from this pin to GND, the external frequency can be
increased up to 1 MHz. Connecting an external resistor from this pin to VREF
(1.8V), the switching frequency can be decreased down to 200 KHz. If the pin is left
open, the default switching frequency is 400 KHz. The pin voltage is 1.2V. In OVP
the pin is pulled up to 3.3V (only in latched mode).
8FB
This pin is connected to the error amplifier inverting input. Connect it to the output
resistor divider (if used) or directly to Vout. This pin is also used to sense the output
voltage in order to manage the over voltage condition.
6COMP
This pin is connected to the error amplifier output and is used to compensate the
voltage control feedback loop.
5
SS/INH
The soft-start time is programmed connecting an external capacitor from this pin
and GND. The internal current generator forces a current of 22
μA through the
capacitor. When the voltage at this pin is lower than 0.65V the device is disabled.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VOUT
VCC
SS/INH
COMP
FB
SYNCH
FSW
OUS
VREF
GND
VOUT
HTSSOP16
ILIM-ADJ
相关PDF资料 |
PDF描述 |
|---|---|
| L6219DSTR-T | STEPPER MOTOR CONTROLLER, 1 A, PDSO24 |
| L6232A | BRUSHLESS DC MOTOR CONTROLLER, 3.5 A, PQCC44 |
| L6232B | BRUSHLESS DC MOTOR CONTROLLER, 3.5 A, PQCC28 |
| L6242 | VOICE COIL MOTOR CONTROLLER, 1.5 A, PDSO20 |
| L6506 | STEPPER MOTOR CONTROLLER, PDIP18 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L5988D | 功能描述:直流/直流开关调节器 STEP DOWN SWITCH REG 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 |
| L5988DTR | 功能描述:直流/直流开关调节器 4A Step Down Reg 2.9V to 18V 200ns 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 |
| L5989D | 功能描述:直流/直流开关调节器 4A cont 5A pulsed step-down sw 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 |
| L5989DTR | 功能描述:直流/直流开关调节器 4A cont 5A pulsed step-down sw 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 |
| L5991 | 功能描述:电流型 PWM 控制器 Prog Current Mode RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
发布紧急采购，3分钟左右您将得到回复。