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參數(shù)資料
| 型號(hào)： | MIC2194BM |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 400kHz SO-8 Buck Control IC |
| 中文描述： | SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 63K |
| 代理商： | MIC2194BM |
MIC2194
Micrel
MIC2194
2
October 2002
Pin Configuration
1
COMP
FB
EN/UVLO
CS
8
VIN
OUTP
GND
VDD
7
6
5
2
3
4
8 Lead SOIC (M)
Ordering Information
Part Number
MIC2194BM
Output Voltage
Adjustable
Frequency
400KHz
Junction Temp. Range
–
40
°
C to +125
°
C
Package
8-lead SOP
Pin Description
Pin Number
Pin Name
Pin Function
1
COMP
Compensation (Output): Internal error amplifier output. Connect to a
capacitor or series RC network to compensate the regulator
’
s control loop.
2
FB
Feedback (Input): The circuit regulates this pin to 1.245V.
3
EN/UVLO
Enable/Undervoltage Lockout (Input): A low level on this pin will power down
the device, reducing the quiescent current to under 0.5
μ
A. This pin has two
separate thresholds, below 1.5V the output switching is disabled, and below
0.9V the device is forced into a complete micropower shutdown. The 1.5V
threshold functions as an accurate undervoltage lockout (UVLO) with
hysteresis.
4
CS
The (
–
) input to the current limit comparator. A built-in offset of 110mV
between VIN and CSL in conjunction with the current sense resistor sets the
current limit threshold level. This is also the (
–
) input to the current amplifier.
5
VDD
3V internal linear-regulator output. VDD is also the supply voltage bus for the
chip. Bypass to GND with 1
μ
F.
6
GND
Ground.
7
OUTP
High current drive for the synchronous N-channel MOSFET. Voltage swing
is from ground to VIN. On-resistance is typically 3
@ 5V
IN
.
Input voltage to the circuit. Also the high side input to the current sense
amplifier supplies power to the gate drive circuit.
8
VIN
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| MIC2194BM TR | 功能描述:IC REG CTRLR BST PWM CM 8-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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
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| MIC2194YM TR | 功能描述:DC/DC 開(kāi)關(guān)控制器 SO-8 3V Buck Contoller (Lead Free) RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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 |
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| MIC2196_08 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:400kHz SO-8 Boost Control IC |
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