MIC2194YM Micrel Inc, MIC2194YM Datasheet

MIC2194YM

Manufacturer Part Number

MIC2194YM

Description

IC PWM BUCK BST CM 8SOIC

Manufacturer

Micrel Inc

Datasheet

1.MIC2194YM.pdf (10 pages)

Specifications of MIC2194YM

Pwm Type

Current Mode

Number Of Outputs

Frequency - Max

440kHz

Duty Cycle

100%

Voltage - Supply

2.9 V ~ 14 V

Buck

Yes

Boost

Yes

Flyback

Inverting

Doubler

Divider

Cuk

Isolated

Operating Temperature

-40°C ~ 125°C

Package / Case

8-SOIC (3.9mm Width)

Frequency-max

440kHz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

576-1716-5
MIC2194YM

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MIC2194YM

Manufacturer:

MICREL

Quantity:

2 934

Company:

Meier Automation Equipment Co., Limited

Part Number:

MIC2194YM

Manufacturer:

MICREL/麦瑞

Quantity:

20 000

Company:

H&T Electronics

Part Number:

MIC2194YM

Quantity:

Current page: 1 of 10
Download datasheet (62Kb)

General Description

Micrel’s MIC2194 is a high efficiency PWM buck control IC

housed in the SO-8 package. Its 2.9V to 14V input voltage

range allows it to efficiently step down voltages in 3.3V, 5V,

and 12V systems as well as 1- or 2-cell Li Ion battery powered

applications. The flexible architecture of the MIC2194 allows

for it to be configured as a buck or a buck-boost converter.

The MIC2194 solution saves valuable board space. The

device is housed in the space-saving SO-8 package, whose

low pin-count minimizes external components. Its 400kHz

PWM operation allows a small inductor and small output

capacitors to be used. The MIC2194 can implement all-

ceramic capacitor solutions.

The MIC2194 drives a high-side P-channel MOSFET. A low

output driver impedance of 2 allows the MIC2194 to drive

large external MOSFETs to generate a wide range of output

currents. The MIC2194 can achieve maximum duty cycles of

100%, which can be useful in low headroom applications.

The MIC2194 is available in an 8 pin SOIC package with a

junction temperature range of –40 C to +125 C.

Typical Application

April 2005

MIC2194

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

10 F

16V

+3.3V

10 F

16V

1 F

Positive-to-Negative Buck-Boost Converter

10nF

47 F

20V

( 2)

12V

2.2nF

Adjustable Output Buck Converter

4.99k

VIN

EN/

UVLO

VDD

COMP

MIC2194BM

VIN

EN/

UVLO

VDD

COMP

0.040

MIC2194BM

0.012

OUTP

GND

OUTP

GND

Si9803

Features

• 2.9V to 14V input voltage range

• 400kHz oscillator frequency

• PWM current mode control

• 2 output drivers

• 100% maximum duty cycle

• 0.5 A micro-power shutdown

• Programmable UVLO

• Front edge blanking

• Cycle-by-cycle current limiting

• Frequency foldback short circuit protection

• 8-lead SOIC package

Applications

• Point of load power supplies

• Negative voltage buck-boost power supplies

• Distributed power systems

• Base stations

• Wireless modems

• ADSL line cards

• Servers

• Step down conversion in 3.3V, 5V, 12V systems

• 1-and 2-cell Li Ion battery operated equipment

B530 10k

5.2 H

B530

Si4431A

( 2)

22 H

3.32k

3.01k

400kHz SO-8 Buck Control IC

5V, 5A

22nF

220 F

10V

( 2)

OUT

MIC2194

220 F

10V

( 2)

–5V, 0.6A

OUT

MIC2194

Micrel

Related parts for MIC2194YM

MIC2194YM Summary of contents

Page 1

MIC2194 General Description Micrel’s MIC2194 is a high efficiency PWM buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows it to efficiently step down voltages in 3.3V, 5V, and 12V systems as well ...

Page 2

... MIC2194 Ordering Information Part Number Standard Lead-Free MIC2194BM MIC2194YM Pin Configuration Pin Description Pin Number Pin Name 1 COMP EN/UVLO VDD 6 GND 7 OUTP 8 VIN MIC2194 Output Voltage Frequency Junction Temp. Range Adjustable 400kHz COMP 1 8 VIN OUTP EN/UVLO 3 6 GND VDD 8 Lead SOIC (M) Pin Function Compensation (Output): Internal error amplifier output ...

Page 3

MIC2194 Absolute Maximum Ratings Supply Voltage (V ) ..................................................... 15V IN Digital Supply Voltage (V ) ........................................... 7V DD Enable Pin Voltage (V ) ............................. –0.3V to +15V EN Comp Pin Voltage (V ) ............................ –0.3V to +3V COMP Feedback ...

Page 4

MIC2194 Parameter Condition Gate Drivers Rise/Fall Time C L Output Driver Impedance Source, V Sink, V Source, V Sink, V Note 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply ...

Page 5

MIC2194 Typical Characteristics Quiescent Current vs. Input Voltage 4.5 4 Switching 3.5 3 2.5 2 1.5 1 0.5 Standby INPUT VOLTAGE (V) V vs. Load DD 3. 3.3V 3.03 IN 3.01 2.99 2.97 ...

Page 6

MIC2194 Functional Diagram C EN/UVLO 3 VDD 5 fs/4 OSC COMPARATOR COMP 1 Functional Characteristics Controller Overview and Functional Description The MIC2194 is a BiCMOS, switched-mode, step down (buck) converter controller. It uses a P-channel MOSFET, which allows the controller ...

Related keywords

mic21
mic2169
mic2196
mic2164
mic2196ym
mic2196bm
mic2194ym
mic2194bm
mic2193bm
MIC2194YM datasheet
MIC2194YM data sheet
MIC2194YM pdf datasheet
MIC2194YM component
MIC2194YM part
MIC2194YM distributor
MIC2194YM RoHS
MIC2194YM datasheet download

MIC2194YM Micrel Inc, MIC2194YM Datasheet

MIC2194YM

Specifications of MIC2194YM

Available stocks

Related parts for MIC2194YM

MIC2194YM Summary of contents

Page 1

Page 2

Page 3

Page 4

Page 5

Page 6

Page 7

Page 8

Page 9

Page 10

Related keywords