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参数资料
| 型号： | L5993D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 12/22页 |
| 文件大小： | 200K |
| 代理商： | L5993D |
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage (ICC < 50mA) (*)
selflimit
V
IOUT
Output Peak Pulse Current
1.5
A
Analog Inputs & Outputs (6,7)
-0.3 to 8
V
Analog Inputs & Outputs (1,2,3,4,5,15,14, 13, 16)
-0.3 to 6
V
Ptot
Power Dissipation @ Tamb =70
°C (DIP16)
@Tamb =50
°C (SO16)
1
0.83
W
Tj
Junction Temperature, Operating Range
-40 to 150
°C
Tstg
Storage Temperature, Operating Range
-55 to 150
°C
(*) maximum package power dissipation limits must be observed
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb
Thermal Resistance Junction -Ambient (DIP16)
Thermal Resistance Junction -Ambient (SO16)
80
120
°C/W
PIN FUNCTIONS
N.
Name
Fun ction
1
SYNC
Synchronization. A synchronization pulse terminates the PWM cycle and discharges Ct
2
RCT
Oscillator pin for external Ct,Rt components
3
DC
Duty Cycle control
4
VREF
5.0V +/-1.5% reference voltage at 25
°C
5
VFB
Error Amplifier Inverting input
6
COMP
Error Amplifier Output
7
SS
Soft start pin for external capacitor Css
8VCC
Supply for internal ”Signal” circuitry
9VC
Supply for Power section
10
OUT
High current totem pole output
11
PGND
Power ground
12
SGND
Signal ground
13
ISEN
Current sense
14
DIS
Disable. It must never be left floating. Tie to SGND if not used.
15
DC-LIM
Connecting this pin to Vref, DC is limited to 50%. If it is left floating or grounded no limitation is
imposed
16
C-POWER
Constant Power vs. Switching Frequency. Connect a capacitor to SGND. The pin must be
connected to VREF if not used.
SYNC
RCT
DC
VREF
VFB
SS
COMP
1
3
2
4
5
6
7
OUT
SGND
PGND
ISEN
DIS
DC-LIM
C-POWER
16
15
14
13
12
10
11
D97IN783
VCC
8VC
9
PIN CONNECTION
L5993
2/22
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L5993D013TR | 功能描述:开关变换器、稳压器与控制器 Prog Current Mode RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L5994 | 功能描述:电流型 PWM 控制器 Adj Triple Out Pwr 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 |
| L5994_02 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ADJUSTABLE TRIPLE OUTPUT POWER SUPPLY CONTROLLER |
| L5994A | 功能描述:监控电路 ADJT TRIPLE OUTPUT POWER SUPPLY CNTLR RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| L5995 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Current-Mode SMPS Controller |
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