參數資料
型號： LTC3548EMSE
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Dual Synchronous,400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
中文描述： 1.6 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10
封裝： PLASTIC, MSOP-10
文件頁數： 3/16頁
文件大?。?/td> 239K
代理商： LTC3548EMSE
LTC3548
3
3548f
2.5
2.4
2.3
2.2
2.1
2.0
F
10
8
6
4
2
0
–2
–4
–6
–8
–10
F
SUPPLY VOLTAGE (V)
2
3548 G06
3
4
5
6
INPUT VOLTAGE (V)
2
3548 G04
3548 G01
3548 G02
3548 G03
3
4
5
6
TEMPERATURE (
°
C)
–50
25
75
3548 G05
–25
0
50
100
125
100
95
90
85
80
75
70
65
60
E
V
IN
= 3.6V
V
OUT
= 1.8V
I
= 180mA
CHANNEL 1; CIRCUIT OF FIGURE 3
V
IN
= 3.6V
V
OUT
= 1.8V
I
= 30mA
CHANNEL 1; CIRCUIT OF FIGURE 3
V
IN
= 3.6V
V
OUT
= 1.8V
I
= 80mA TO 800mA
CHANNEL 1; CIRCUIT OF FIGURE 3
V
= 1.8V, CHANNEL 1
Burst Mode OPERATION
CIRCUIT OF FIGURE 3
800mA
10mA
100mA
1mA
SW
5V/DIV
V
OUT
20mV/DIV
I
L
200mA/DIV
SW
5V/DIV
V
10mV/DIV
I
L
200mA/DIV
V
200mV/DIV
I
L
500mA/DIV
I
500mA/DIV
2
μ
s/DIV
1
μ
s/DIV
20
μ
s/DIV
V
IN
= 3.6V
TYPICAL PERFOR AU
Load Step
Burst Mode Operation
Pulse Skipping Mode
Efficiency vs Input Voltage
Oscillator Frequency vs Supply
Voltage
Oscillator Frequency vs
Temperature
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired. No pin shall exceed 6V.
Note 2:
The LTC3548 is guaranteed to meet specified performance from
0
°
C to 70
°
C. Specifications over the –40
°
C and 85
°
C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3:
The LTC3548 is tested in a proprietary test mode that connects
V
FB
to the output of the error amplifier.
Note 4:
Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5:
T
J
is calculated from the ambient T
A
and power dissipation P
D
according to the following formula: T
J
= T
A
+ (P
D
θ
JA
).
Note 6:
The DFN switch on-resistance is guaranteed by correlation to
wafer level measurements.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 3.6V, unless otherwise specified. (Note 2)
SYMBOL
PARAMETER
POR
Power-On Reset Threshold
Power-On Reset On-Resistance
Power-On Reset Delay
V
RUN
RUN Threshold
I
RUN
RUN Leakage Current
The
●
denotes the specifications which apply over the full operating
CONDITIONS
V
FB
Ramping Down, MODE/SYNC = 0V
MIN
TYP
–8.5
100
262,144
1
0.01
MAX
UNITS
%
200
Cycles
●
0.3
1.5
1
V
●
μ
A
T
A
= 25
°
C unless otherwise specified.
相關PDF資料
PDF描述
LTC3701EGN 2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller
LTC3701 16-Bit Universal Bus Driver With 3-State Outputs 48-SSOP -40 to 85
LTC3708 No RSENSE Low EMI, Synchronous DC/DC Controller with Output Tracking
LTC3736 CTV 5C 5#20 SKT PLUG
LTC3736EGN Dual 2-Phase, No RSENSE Synchronous Controller with Output Tracking
相關代理商/技術參數
參數描述
LTC3548EMSE#PBF 功能描述:IC REG BUCK SYNC ADJ DL 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤
LTC3548EMSE#TRPBF 功能描述:IC REG BUCK SYNC ADJ DL 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤
LTC3548EMSE-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
LTC3548EMSE-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
LTC3548IDD 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Synchronous, 400mA/800mA, 2.25MHz
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯系方式

*
*
*