MIC4684BM Micrel Inc, MIC4684BM Datasheet - Page 13

• Manufacturer Part Number: MIC4684BM
• Description: IC REG BUCK 2A ADJ VOLT HE 8SOIC
• Manufacturer: Micrel Inc
• Series: SuperSwitcher™r
• Type: Step-Down (Buck)r

Specifications of MIC4684BM

• Mounting Type: Surface Mount
• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 1.235V
• Current - Output: 2A
• Frequency - Switching: 200kHz
• Voltage - Input: 4 ~ 30 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• No. Of Pins: 8
• Peak Reflow Compatible (260 C): No
• Current Rating: 2A
• Output Voltage Max: 1.235V
• Supply Voltage Max: 30V
• Leaded Process Compatible: No
• Voltage Regulator Type: Switching
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Lead free / RoHS Compliant

Printed Circuit Board
Evaluation Board Optimized for Low Input Voltage by using Feed-Forward Diode Configuration (V
Abbreviated Bill of Material (Critical Components)
Notes:
1. Vishay Dale, Inc., tel: [phone], http://www.vishay.com
2. Vishay Sprague, Inc., tel: [phone], http://www.vishay.com
3. Diodes Inc, tel: [phone], http://www.diodes.com
4. Sumida, tel: [phone], http://www.sumida.com
5. Micro Commercial Components, tel: [phone]
6. Micrel, Inc. tel: [phone], http://www.micrel.com
January 2010
MIC4684
Reference
C1
C2, C5
C6
C3
C4
D1
D2
L1
U1
Figure 7c. Bottom Side Silk Screen
Figure 7a. Bottom Side Copper
Part Number
594D156X0035D2T
VJ0805Y104KXAAB
GRM426X7R334K50
Optional
594D337X06R3D2T
B340A
MBRX120
CDRH104R-470MC
MIC4684BM
Manufacturer
Vishay Sprague
Vitramon
Murata
Vishay Sprague
Diode Inc
Micro Com. Components
Sumida
Micrel, Inc.
(4)
(3)
(6)
(1)
(2)
13
(5)
Description
15µF 35V
0.1µF 50V
0.33µF, 50V ceramic capacitor
1800pF, 50V ceramic
330µF, 6.3V, tantalum
Schottky 3A, 40V
Schottky 1A, 20V
47µH, 2.1A I
1A 200kHz power-SO-8 buck regulator
Figure 7d. Top Side Silk Screen
Figure 7b. Top Side Copper
SAT
IN
= 4V to 16V)
M9999-012610
Micrel, Inc.
Qty
(1)
1
2
1
1
1
1
1