參數(shù)資料
型號(hào)： LM34919BTL
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, PBGA10
封裝： MICRO, SMD-10
文件頁數(shù)： 16/20頁
文件大小： 488K
代理商： LM34919BTL
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Threshold hysteresis
Voltage at RON/SD
40
mV
Off Timer
t
OFF
Minimum Off-time
V
IN = 6V, ICC = 3mA
60
88
120
ns
V
IN = 8V, ICC = 3mA
58
82
118
Regulation and Over-Voltage Comparators (FB Pin)
V
REF
FB regulation threshold
SS pin = steady state
2.440
2.5
2.550
V
FB over-voltage threshold
2.9
V
FB bias current
FB = 3V
1
nA
Thermal Shutdown
T
SD
Thermal shutdown temperature
175
°C
Thermal shutdown hysteresis
20
°C
Thermal Resistance
θ
JA
Junction to Ambient
0 LFPM Air Flow
61
°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:
V
CC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading
Note 4:
Typical specifications represent the most likely parametric norm at 25°C operation.
5
www.national.com
LM34919B
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM34919BTL/NOPB 功能描述:直流/直流開關(guān)調(diào)節(jié)器 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
LM34919BTLX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator
LM34919BTLX/NOPB 功能描述:直流/直流開關(guān)調(diào)節(jié)器 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
LM34919C-Q1 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM34919C-Q1 Ultra Small 50V, 600 mA Constant On-Time Buck Switching Regulator
LM34919CQSD/NOPB 制造商:Texas Instruments 功能描述:IC REG BUCK ADJ 0.6A 12WSON
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