- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385480 > LM3351 (National Semiconductor Corporation) Switched Capacitor Voltage Converter PDF資料下載
參數(shù)資料
| 型號： | LM3351 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Switched Capacitor Voltage Converter |
| 中文描述： | 開關(guān)電容電壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 265K |
| 代理商： | LM3351 |
Electrical Characteristics
2/3 Step-Down Voltage Converter
(Continued)
Specifications in standard type face are for T
= 25C, and those with
boldface type
apply over
full operating temperature
range
. Unless otherwise specified, V
high
= 5V, V
Enable
= 5V, I
load
= 50 mA, C
1
, C
2
, C
in
and C
out
= 1 μF.
Symbol
Parameter
Conditions
I
Q2
Quiescent Current
Normal Mode, I
Ioad
= 0A; Current into
pin V
high
Typ
(Note 4)
0.8
Limits
(Note 5)
Units
mA
mA(Max)
(Max)
kHz
kHz(Min)
kHz(Max)
V
V(Min)
V(Max)
μA
μA(Max)
%
1.0
Z
out
Output Source
Impedance
I
load
= 50 mA
1.8
3
f
SW
Switching
Frequency
(Note 6)
200
125
275
V
Enable
Enable Threshold
Voltage
1.7
1.0
2.5
I
Enable
Leakage Current
Current into ENABLE pin; ENABLE =
5V and all other pins at ground
0.025
1
P
η
Power Efficiency
95
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-
anteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2:
For operation at elevated temperatures, LM3351 must be derated based on package thermal resistance of
θ
ja
and T
j
max, T
j
= T
A
+
θ
ja
P
D
.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 kW resistor into each pin.
Note 4:
Typical numbers are at 25C and represent the most likely parametric norm.
Note 5:
Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL).
Note 6:
The internal oscillator runs at 1.6 MHz, the output switches operate at one eighth of the oscillator frequency, f
OSC
= 8f
SW
.
Typical Performance Characteristics
V
out
vs I
load
(Step-Up)
DS100146-4
P
η
vs I
load
(Step-Up)
DS100146-5
Output Source Impedance vs
Temperature (Step-Up)
DS100146-6
L
www.national.com
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3351MM | Switched Capacitor Voltage Converter |
| LM3351MMX | Switched Capacitor Voltage Converter |
| LM3355MM-4.1 | Regulated 50mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM3355MMX-4.1 | Regulated 50mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM336AH-2.5 | 2.5V Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3351A WAF | 制造商:Texas Instruments 功能描述: |
| LM3351AM E WAF | 制造商:Texas Instruments 功能描述: |
| LM3351MM | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM3351MM/NOPB | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM3351MM/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。