參數(shù)資料
型號(hào)： LM25576Q0MH
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, PDSO20
封裝： TSSOP-20
文件頁數(shù)： 19/22頁
文件大?。?/td> 408K
代理商： LM25576Q0MH
Symbol
Parameter
Conditions
Min
Typ
Max
Units
RAMP GENERATOR
Ramp Current 1
Vin = 36V, Vout=10V
136
160
184
A
Ramp Current 2
Vin = 10V, Vout=10V
18
25
32
A
PWM COMPARATOR
Forced Off-time
390
500
590
ns
Min On-time
80
ns
COMP to PWM Comparator Offset
0.7
V
ERROR AMPLIFIER
Feedback Voltage
Vfb = COMP
1.205
1.225
1.245
V
FB Bias Current
17
nA
DC Gain
70
dB
COMP Sink / Source Current
2.5
mA
Unity Gain Bandwidth
3
MHz
DIODE SENSE RESISTANCE
D
SENSE
42
m
THERMAL SHUTDOWN
Tsd
Thermal Shutdown Threshold
180
°C
Thermal Shutdown Hysteresis
25
°C
THERMAL RESISTANCE
θ
JC
Junction to Case
6
°C/W
θ
JA
Junction to Ambient
40
°C/W
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
The human body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin.
Note 3:
Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Typical Performance Characteristics
Oscillator Frequency vs R
T
30071220
Oscillator Frequency vs Temperature
F
OSC = 200kHz
30071246
www.national.com
6
LM25576Q0
相關(guān)PDF資料
PDF描述
LM2574HVADJMWC 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC
LM2574HVN-3.3/NOPB 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP8
LM2574-5.0MWC 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC
LM2574-ADJMWC 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC
LM2574N-15/NOPB 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM25576Q0MH/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM25576Q0MHX/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM25576QMH/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM25576QMHX/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2567 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LAN DC/DC Converter
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