- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄44553 > LM3661TL-1.25 (NATIONAL SEMICONDUCTOR CORP) 0.454 A SWITCHING REGULATOR, 675 kHz SWITCHING FREQ-MAX, PBGA10 PDF資料下載
參數(shù)資料
| 型號： | LM3661TL-1.25 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.454 A SWITCHING REGULATOR, 675 kHz SWITCHING FREQ-MAX, PBGA10 |
| 封裝： | MICRO SMD-10 |
| 文件頁數(shù)： | 14/17頁 |
| 文件大?。?/td> | 845K |
| 代理商： | LM3661TL-1.25 |
Electrical Characteristics (Note 2) (Continued)
Specifications with standard typeface are for T
J = 25C, and those in bold face type apply over the full Operating Temperature
Range (T
A =TJ = 30C to +85C). Unless otherwise specified, PVIN =VDD = EN = SYNC/MODE = VSEL = 3.6V, ISEL= 0V,
C
OUT = 22 F.
Symbol
Parameter
Remarks
Min
Typ
Max
Units
V
EN,H
EN Logic High Input (Note 4)
V
IN = 2.7V to 5.5V
1.2
V
EN,L
EN Logic Low Input
0.4
V
SYNC/MODE,
H
SYNC/MODE Logic High Input
1.2
V
SYNC/MODE,
L
SYNC/MODE Logic Low Input
0.4
V
SEL, H
V
SEL Logic High Input
1.2
V
SEL, L
V
SEL Logic Low Input
0.4
V
I
SEL,H
I
SEL Logic High Input
1.2
V
I
SEL, L
I
SEL Logic Low Input
0.4
R
EN
Enable pin input resistance
1
M
f
SYNC
SYNC/MODE Clock Frequency
Range (Note 6)
V
IN = 2.7V to 5.5V
500
750
kHz
f
OSC
Internal Oscillator Frequency
PWM mode (SYNC/MODE = V
IN)
V
IN = 2.7V to 5.5V
535
600
675
kHz
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm. Due
to the pulsed nature of the testing TA=TJ for the electrical characteristics table.
Note 3: Thermal shutdown will occur if the junction temperature exceeds 150C. This function is only active in PWM mode.
Note 4: The LM3202 is designed for mobile phone applications where turn-on after power-up is controlled by the system controller and where requirements for a
small package size overrule increased die size for internal Under Voltage Lock-Out (UVLO) circuitry. Thus, it should be kept in shutdown by holding the EN pin low
until the input voltage exceeds 2.7V.
Note 5: The hysteresis voltage is the minimum voltage swing on FB that causes the internal feedback and control circuitry to turn the internal PFET switch on and
then off, during test mode.
Note 6: SYNC/MODE driven with an external clock switching between VIN and GND. When an external clock is present at SYNC/MODE, the IC is forced to PWM
mode at the external clock frequency.
LM3661
www.national.com
6
相關PDF資料 |
PDF描述 |
|---|---|
| LM3668SD-3.3/NOPB | 2.05 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, DSO12 |
| LM368N-5.0 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PDIP8 |
| LM3691TLX-1.1 | 1.7 A SWITCHING REGULATOR, 4400 kHz SWITCHING FREQ-MAX, PBGA6 |
| LM3691TL-0.85 | 1.7 A SWITCHING REGULATOR, 4400 kHz SWITCHING FREQ-MAX, PBGA6 |
| LM3691TLX-3.3 | 1.7 A SWITCHING REGULATOR, 4400 kHz SWITCHING FREQ-MAX, PBGA6 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM3661TLX-1.25 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:450mA Subminiature, Micropower Step-Down DC-DC Converter for Ultra Low-Voltage Circuits |
| LM3661TLX-1.35 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:450mA Subminiature, Micropower Step-Down DC-DC Converter for Ultra Low-Voltage Circuits |
| LM3661TLX-1.35/NOPB | 制造商:Texas Instruments 功能描述: |
| LM3661TLX-1.40 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:450mA Subminiature, Micropower Step-Down DC-DC Converter for Ultra Low-Voltage Circuits |
| LM3668 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1A, High Efficiency Dual Mode Single Inductor Buck-Boost DC/DC Converter |
發(fā)布緊急采購，3分鐘左右您將得到回復。