參數(shù)資料
型號： MIC2183BM
廠商： MICREL INC
元件分類： 穩(wěn)壓器
英文描述： CHOKE COIL 220UH 840MA SMD
中文描述： SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO16
封裝： SOP-16
文件頁數(shù)： 1/12頁
文件大小： 98K
代理商： MIC2183BM
December 10, 2001
1
MIC2183
MIC2183
Micrel
MIC2183
Low Voltage Synchronous Buck PWM Control IC
Final Information
General Description
Micrel’s MIC2183 is a high efficiency PWM synchronous
buck control IC. With its wide input voltage range of 2.9V to
14V, the MIC2183 can be used to efficiently step voltages
down in 1- or 2-cell Li Ion battery powered applications, as
well as in fixed 3.3V, 5V, or 12V systems.
Efficiencies over 90% are achievable over a wide range of
load conditions with the MIC2183’s PWM control scheme.
The operating frequency can be divided by two by raising the
FREQ/2 pin to V
DD
. This allows the user to optimize efficiency
versus board space. It also allows the MIC2183 to be exter-
nally synchronized to frequencies below its nominal 400KHz.
The MIC2183 features an oscillator output, FreqOut, which
can be used to implement a simple charge pump in low
voltage applications. The output of the charge pump can be
fed into the gate drive power circuitry via the V
IN
P pin. This
feature allows enhanced gate drive, hence higher efficiencies
at low input voltages.
MIC2183 also features a 1
μ
A shutdown mode, and a pro-
grammable undervoltage lockout, making it well-suited for
portable applications.
The MIC2183 is available in 16-pin SOP and QSOP packag-
ing options with a junction temperature range from -40
°
C to
+125
°
C.
Typical Application
FreqOut
VINA
EN/UVLO
V
2.5V @5A
FREQ/2
VDD
COMP
SS
SYNC
SGND
5
MIC2183
VINP
CSH
CSL
OUTN
OUTP
PGND
FB
V
IN
= 3.3V
1
7
2
15
10
4
3
11
16
9
8
14
13
12
6
120
μ
F (x2)
6.3V
15m
1nF
Si9803DY(x2)
4.7
μ
H
Si9804DY
(x2)
B130
220
μ
F (x2)
6.3V
Adjustable Output Synchronous Buck Converter
Features
Input voltage range: 2.9V to 14V
>90% efficiency
Oscillator frequency of 400kHz
Frequency divide-by-two pin
Frequency sync to 600kHz
FreqOut oscillator output allows simple charge pump
implementation in low voltage systems
Front edge blanking
5
output drivers (typical)
Soft start
PWM current mode control
1
μ
A shutdown current
Cycle-by-cycle current limiting
Frequency foldback short circuit protection
Adjustable under-voltage lockout
16-pin narrow-body SOP and QSOP package options
Applications
3.3V to 2.5V/1.8V/1.5V conversion
DC power distribution systems
Wireless modems
ADSL line cards
1-and 2-cell Li Ion battery operated equipment
Satellite Phones
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
E
OUTPUT CURRENT (A)
MIC2183 EFFICIENCY
V
IN
= 3.3V
V
OUT
= 2.5V
f
S
= 200kHz
相關(guān)PDF資料
PDF描述
MIC2183 Low Voltage Synchronous Buck PWM Control IC Final Information
MIC2186BQS Low Voltage PWM Control IC
MIC2186 Low Voltage PWM Control IC
MIC2186BM Low Voltage PWM Control IC
MIC2196YM 400kHz SO-8 Boost Control IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC2183BM TR 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
MIC2183BQS 功能描述:IC REG CTRLR BUCK PWM CM 16-QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
MIC2183BQS TR 功能描述:IC REG CTRLR BUCK PWM CM 16-QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
MIC2183YM 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MIC2183YM TR 功能描述:DC/DC 開關(guān)控制器 SO-16 Low Vin Synchronous Buck PWM Control IC (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

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(jìn)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(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*