LM2735YMYEVAL National Semiconductor, LM2735YMYEVAL Datasheet - Page 2

• Manufacturer Part Number: LM2735YMYEVAL
• Description: BOARD EVAL LM2735 520KHZ 8MSOP
• Manufacturer: National Semiconductor

Specifications of LM2735YMYEVAL

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 12V
• Current - Output: 500mA
• Voltage - Input: 3 ~ 5.5V
• Regulator Topology: Boost
• Frequency - Switching: 520kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2735
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

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Pin Description for 8-Pin eMSOP
Bill of Materials LM2735Y
DAP
Pin
1
2
3
4
5
6
7
8
D1, Catch Diode
C3 Output Cap
C4 Output Cap
C5 Comp Cap
C1 Input Cap
C2 Input Cap
Part ID
U1
R1
R2
R3
L1
PGND
AGND
Name
GND
VIN
SW
NC
EN
NC
FB
0.4V
Function
No Connect
Power ground pin. Place PGND and output capacitor GND close together.
Supply voltage for power stage, and Input supply voltage.
Shutdown control input. Logic high enables operation. Do not allow this pin to float or be
greater than VIN + 0.3V.
Feedback pin. Connect FB to external resistor divider to set output voltage.
Signal ground pin. Place the bottom resistor of the feedback network as close as possible to
pin 5
Output switch. Connect to the inductor, output diode.
No Connect
Signal & Power ground. Connect to pin 2 & pin 6 on top layer. Place 4-6 via’s from DAP to
bottom layer GND plane.
2.1A Boost Regulator
22µF, 6.3V, X5R
10µF, 25V, X5R
f
Schottky 1A, 20VR
10.2kΩ, 1%
86.6kΩ, 1%
100kΩ, 1%
Part Value
22µH 2.3A
No Load
No Load
330pF
Top View
Pin-Out
2
Manufacturer
Coilcraft
Vishay
Vishay
Vishay
NSC
30026802
TDK
TDK
TDK
ST
C3216X5R1E106M
C2012X5R0J226M
C1608X5R1H331K
CRCW06031022F
CRCW06038662F
CRCW06031003F
DO3316P-223
Part Number
LM2735YMY
STPS120M