- 您现在的位置：买卖IC网 > PDF目录44549 > LM2599-3.3MWC (NATIONAL SEMICONDUCTOR CORP) 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC PDF资料下载
参数资料
| 型号： | LM2599-3.3MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | WAFER |
| 文件页数： | 31/36页 |
| 文件大小： | 897K |
| 代理商： | LM2599-3.3MWC |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页当前第31页第32页第33页第34页第35页第36页
All Output Voltage Versions
Electrical Characteristics (Continued)
Specifications with standard type face are for T
J = 25C, and those with boldface type apply over full Operating Tempera-
ture Range. Unless otherwise specified, V
IN = 12V for the 3.3V, 5V, and Adjustable version and VIN = 24V for the 12V ver-
sion. I
LOAD = 500 mA
Symbol
Parameter
Conditions
LM2599-XX
Units
(Limits)
Typ
Limit
(Note
4)
(Note 5)
DEVICE PARAMETERS
I
Q
Operating Quiescent
SD /SS Pin Open (Note 10)
5mA
Current
10
mA(max)
I
STBY
Standby Quiescent
SD /SS pin = 0V
(Note 11)
80
A
Current
200/250
A(max)
θ
JC
Thermal Resistance
TO220 or TO263 Package, Junction to Case
2
C/W
θ
JA
TO220 Package, Juncton to Ambient (Note 12)
50
C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 13)
50
C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 14)
30
C/W
θ
JA
TO263 Package, Juncton to Ambient (Note 15)
20
C/W
SHUTDOWN/SOFT-START CONTROL Test Circuit of
Figure 1
V
SD
Shutdown Threshold
1.3
V
Voltage
Low, (Shutdown Mode)
0.6
V(max)
High, (Soft-start Mode)
2
V(min)
V
SS
Soft-start Voltage
V
OUT = 20% of Nominal Output Voltage
2
V
OUT = 100% of Nominal Output Voltage
3
I
SD
Shutdown Current
V
SHUTDOWN = 0.5V
5A
10
A(max)
I
SS
Soft-start Current
V
Soft-start = 2.5V
1.6
A
5
A(max)
FLAG/DELAY CONTROL Test Circuit of
Figure 1
Regulator Dropout Detector
Low (Flag ON)
96
%
Threshold Voltage
92
%(min)
98
%(max)
VF
SAT
Flag Output Saturation
I
SINK = 3 mA
0.3
V
Voltage
V
DELAY = 0.5V
0.7/1.0
V(max)
IF
L
Flag Output Leakage Current
V
FLAG = 40V
0.3
A
Delay Pin Threshold
1.25
V
Voltage
Low (Flag ON)
1.21
V(min)
High (Flag OFF) and V
OUT Regulated
1.29
V(max)
Delay Pin Source Current
V
DELAY = 0.5V
3
A
6
A(max)
Delay Pin Saturation
Low (Flag ON)
55
mV
350/400
mV(max)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: Voltage internally clamped. If clamp voltage is exceeded, limit current to a maximum of 1 mA.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.
Note 4: Typical numbers are at 25C and represent the most likely norm.
Note 5: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100%
production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. All limits are used
to calculate Average Outgoing Quality Level (AOQL).
Note 6: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2599
is used as shown in the
Figure 1 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics.
Note 7: The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of current
overload.
LM2599
www.national.com
4
相关PDF资料 |
PDF描述 |
|---|---|
| LM2621MDC | 2.85 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, UUC |
| LM2622-ADJMWC | 2.3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, UUC |
| LM2630MTC-ADJ/NOPB | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20 |
| LM2630MTC-ADJX | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20 |
| LM2631MTCX-ADJ/NOPB | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2599S-12 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2599S-12/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2599S-3.3 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2599S-3.3/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2599S-5.0 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
发布紧急采购，3分钟左右您将得到回复。