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參數(shù)資料
| 型號： | LM2630MTC-ADJX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大小： | 373K |
| 代理商： | LM2630MTC-ADJX |
Symbol
Parameter
Conditions
Typical
Limit
Units
Maximum Low Level Input
Voltage (SD)
0.5
V(max)
Maximum Input Leakage
Curren1t (SD , FPWM and
SYNC)
Logic Input Voltage 0V or 5V
±0.1
A
V
OH
PGOOD High Level Output
Voltage
PGOOD Sourcing 50 A
2.7
V
2.4
V(min)
V
OL
PGOOD Low Level Output
Voltage
PGOOD Sinking 50 A
0
V
0.5
V(max)
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
outside of its rated operating conditions.
Note 2:
The maximum allowable power dissipation is calculated by using P
Dmax = (TJmax - TA)/θJA , where TJmax is the maximum junction temperature, TA is the
ambient temperature, and
θ
JA is the junction-to-ambient thermal resistance of the specified package. The 720 mW rating results from using 160°C, 70°C, and
125°C/W for T
Jmax, TA, and θJA respectively. A θJA of 125°C/W represents the worst-case condition of no heat sinking of the 20-pin TSSOP. Heat sinking allows
the safe dissipation of more power. The Absolute Maximum power dissipation must be derated by 8 mW per °C above 70°C ambient. The LM2630 actively limits
its junction temperature to about 160°C.
Note 3:
For detailed information on soldering plastic small-outline packages, refer to the Packaging Databook available from National Semiconductor Corporation.
Note 4:
For testing purposes, ESD was applied using the human-body model, a 100 pF capacitor discharged through a 1.5 k
Ω resistor.
Note 5:
A typical is the center of characterization data taken with T
A = TJ = 25°C. Typicals are not guaranteed.
Note 6:
All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with T
A = TJ = 25°C. All hot and cold
limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 7:
This limit is guaranteed by design.
Note 8:
Pulling 2.94 A out of FADJ pin simulates adjusting the oscillator frequency with a 350 k
Ω resistor connected from FADJ to GND.
www.national.com
4
100120 Version 9 Revision 2
Print Date/Time: 2011/08/25 17:11:52
LM2630
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2630MTCX-ADJ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM2630MTCX-ADJ/NOPB | 制造商:Texas Instruments 功能描述:DC DC Cntrlr Single-OUT Step Down 4.5V to 30V Input 20-Pin TSSOP T/R |
| LM2631 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Step-Down Power Supply Controller |
| LM2631MTC-ADJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| LM2633 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced Two-Phase Synchronous Triple Regulator Controller for Notebook CPUs |
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