參數(shù)資料
型號(hào)： L5988D
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 5.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： LEAD FREE, HTSSOP-16
文件頁數(shù)： 50/52頁
文件大?。?/td> 1858K
代理商： L5988D
L5988D
Pin function
Doc ID 15324 Rev 3
7/52
2
Pin function
Figure 2.
Pin connection
Table 1.
Pinout description
N.
Name
Description
1, 16
OUT
Regulator output
2, 3
VIN
Unregulated DC input voltage
4
VCC
Unregulated DC signal input voltage
5
SS/INH
An external logic signal (active LOW) disables the device. In case the pin is
floating the device deliver a constant current (22
μA typ.) to charge the
soft-start capacitor (see 5.4)
6
COMP
Error amplifier output for frequency compensation
7
ILIM-ADJ
Connecting a pull-up resistor to VREF or a pull-down resistor to GND the
internal current limit thresholds can be tuned to match the local application.
In case the pin is left floating no changes are applied to the default current
limit thresholds
8FB
Feedback input. Connecting the output voltage directly to this pin results in
a regulation voltage of 600 mV. An external resistive divider is required for
higher output voltages
9
SYNCH
Master/slave synchronization
10
FSW
Connecting a pull-up resistor to VREF or a pull-down resistor to GND the
internal oscillator frequency will be increased or decreased respectively. In
case the pin is left floating the predefined oscillator frequency
(400 kHz ± 10%) is active
11
U/O/S
Multifunction pin used to program additional features: UVLO thresholds,
OVP latched/not latched, SINK enabled/disabled
12
VREF
1.8 V voltage reference
13
SGND
Signal ground
14, 15
PGND
Power ground
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參數(shù)描述
L5988DTR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A Step Down Reg 2.9V to 18V 200ns RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L5989D 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A cont 5A pulsed step-down sw RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L5989DTR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4A cont 5A pulsed step-down sw RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L5991 功能描述:電流型 PWM 控制器 Prog Current Mode RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
L5991_01 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PRIMARY CONTROLLER WITH STANDBY
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