參數(shù)資料
型號(hào)： MAX887
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： 100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter
中文描述： 100%占空比、低噪聲、降壓型、PWM DC-DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 4/12頁(yè)
文件大小： 146K
代理商： MAX887
M
100% Duty Cyc le, Low-Noise,
S tep-Down, PWM DC-DC Converter
4
_______________________________________________________________________________________
____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 2, T
A
= +25°C, unless otherwise noted.)
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
OUTPUT CURRENT (A)
0.01
0.1
0.6
E
EFFICIENCY vs. OUTPUT CURRENT
M
IDLE MODE
(SYNC = GND)
V
OUT
= 3.3V
V
IN
= 5V
V
IN
= 7V
V
IN
= 9V
V
IN
= 11V
V
IN
= 4V
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
OUTPUT CURRENT (A)
0.01
0.1
0.6
E
EFFICIENCY vs. OUTPUT CURRENT
M
IDLE MODE
(SYNC = GND)
V
OUT
= 5V
V
IN
= 5.5V
V
IN
= 9V
V
IN
= 7V
V
IN
= 11V
0
200
400
600
800
1000
1200
3
5
7
SUPPLY VOLTAGE (V)
9
11
13
15
17
M
MAXIMUM OUTPUT CURRENT
vs. SUPPLY VOLTAGE
M
GUARANTEED OUTPUT CURRENT
OF FIGURE 2 IS 600mA
3.3V SETTING, V
OUT
= 3.135V
5V SETTING, V
OUT
= 4.75V
0
200
400
600
800
1000
1200
0
100
200
300
400
500
600
M
SYNC FREQUENCY (kHz)
MAXIMUM OUTPUT CURRENT
vs. SYNC FREQUENCY
M
C2, C3 = 47μF
L1 = 33μH
V
IN
= 5V
V
OUT
= 3.3V
V
OUT
= -5% at I
OUT(MAX)
250
260
270
280
290
300
310
320
330
340
350
0
2
4
6
8
10
12
14
16
18
S
SUPPLY VOLTAGE (V)
SWITCHING FREQUENCY
vs. SUPPLY VOLTAGE
M
V
OUT
= 3.3V
0
0.5
1.5
2.5
3.5
3.0
2.0
1.0
Q
SUPPLY VOLTAGE (V)
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
A
A
A: V
OUT
= 3.3V, PWM MODE
B: V
OUT
= 3.3V, PFM MODE
0
2
4
6
8
10
12
14
16
18
C
B
0
0.5
1.0
1.5
2.0
2.5
3.0
-60 -40 -20 0
20 40 60 80 100 120 140
TEMPERATURE (°C)
Q
QUIESCENT CURRENT
vs.TEMPERATURE
M
PWM MODE
V
IN
= 5.3V
V
OUT
= 3.3V
PFM MODE
250
260
270
280
290
300
310
320
330
340
350
F
TEMPERATURE (°C)
SWITCHING FREQUENCY
vs. TEMPERATURE
M
V
OUT
= 3.3V
-60 -40 -20
0
20 40 60 80 100 120 140
4
-1
10k
10M
OUTPUT RIPPLE AND HARMONICS
0
2
3
1
M
FREQUENCY (Hz)
O
100k
1M
V
IN
= 5V
V
OUT
= 3.3V
I
= 500mA
PWM MODE
相關(guān)PDF資料
PDF描述
MAX887HESA 100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter
MAX8881EUT33-T 12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK
MAX8880 12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK
MAX8880EUT-T RES 100-OHM 5% 0.063W 200PPM THK-FILM SMD-0402 TR-7-PA2MM UNMARKED
MAX8881 12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8873REUK 制造商:Maxim Integrated Products 功能描述:- Rail/Tube 制造商:Rochester Electronics LLC 功能描述:
MAX8873REUK+T 功能描述:低壓差穩(wěn)壓器 - LDO 120mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MAX8873REUK-T 功能描述:低壓差穩(wěn)壓器 - LDO 120mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MAX8873SEUK 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product 制造商:Rochester Electronics LLC 功能描述:
MAX8873SEUK+ 制造商:Maxim Integrated Products 功能描述:LDO REG 1.25V TO 6.5V/2.84V 0.12A 5PIN SOT-23 - Rail/Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*