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參數(shù)資料
| 型號： | L4985D |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Voltage-Mode SMPS Controller |
| 中文描述： | 電壓模式開關(guān)電源控制器 |
| 文件頁數(shù)： | 16/23頁 |
| 文件大?。?/td> | 415K |
| 代理商： | L4985D |
L4985
3
2
5,6,15,16
18
C8
14
7
13
4
R3
R4
C7
12
11
L2
C5
V
OUT1
= 3.3V/1A
C1
Vin = 5V (DC)
D95IN201
L1
8
17
C3
L3
D2
C13
C14
R8
R9
V
OUT2
= 24V/100mA
C10
10
C2
D1
R2
19
R7
C12
R6
C11
Figure35:
Extremelycompact one chipsolution for inkjetprinter.
L4985
11
C1
Vin = 8V to 12V
D95IN203
L1
8
17
C3
D2
C13
C14
R8
R9
V
OUT2
= 24V/100mA
12
V
OUT3
= -24V/50mA
Figure36:
Multioutputsidea inauxiliary converter only
C1 = 100
μ
F / 16V NCC LXF
C2 = 10
μ
F / 50V
C3 = 330nF film
C5 = 100
μ
F / 16V (ESR = 0.045m
)
C7 = 2.2nF film
C8 = 560pF multilayer
C10 = 2.2
μ
F / 10V
C11 = 3.9nF
C12 = 5.6nF
C13 = 220
μ
F / 35V
C14 = 22nF
R2 = 4.7
R3 = 3.9k
R4 = 2.4k
R6 = 56k
R7 = 39k
R8 = 47k
R9 = 2.7k
‘
L1 = 180
μ
H axial (R
S
= 2 to 5
)
L2 = 68
μ
H (Core Magnetics 55050, 34 turns,
0.8mm )
L3 = 68
μ
H (Core Magnetics 55050, 34 turns,
0.8mm )
D1 = D2 = ST BYV 10 - 40
PIN 9 = OPEN
TYPICALEFFICIENCY OF FIGURE 35
V
IN
I
OUT2
= 100mA
I
OUT1
= 1A
89
88
Unit
I
OUT1
= 0.5A
87.5
85.5
I
OUT1
= 1.5A
88.5
85
5V
7.3V
%
%
L4985
16/23
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| L4987 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG |
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| L4987CPT30 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| L4987CPT33 | 功能描述:IC REG LDO 3.3V .2A P-PAK RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.1V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:300mA 電流 - 限制（最小）:420mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:帶卷 (TR) |
| L4987CPT33TR | 功能描述:IC REG LDO 3.3V .2A P-PAK RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3.1V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:300mA 電流 - 限制（最?。?420mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:帶卷 (TR) |
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