LM3503ITL-25EV National Semiconductor, LM3503ITL-25EV Datasheet - Page 5

• Manufacturer Part Number: LM3503ITL-25EV
• Description: BOARD EVALUATION LM3503ITL-25
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3503ITL-25EV

• Current - Output / Channel: 9mA
• Outputs And Type: 2, Non-Isolated
• Voltage - Output: 25 V
• Features: Dual Display(s)
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM3503
• Core Chip: LM3503
• Topology: Boost
• No. Of Outputs: 1
• Output Voltage: 25V
• Input Voltage: 2.5V To 5.5V
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable

Pin Descriptions
Printed Circuit Board (PCB) Layout
Bump #
A1
B1
C1
D1
D2
D3
C3
B3
A3
A2
LLP Pin #
Top Silk Screen
15 & 16
2 & 3
DAP
14
13
12
10
11
9
7
6
4
1
5
8
Name
V
V
Pgnd
Agnd
Cntrl
DAP
En1
En2
SW
OUT2
OUT1
V
NC
NC
NC
NC
Fb
IN
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LED Current Control Connection
Feeback Voltage Connection ( 0.2V
Drain Connections of the NMOS and PMOS Field Transistor
(FET) Switches. Connect 100nF at V
used
Over-Voltage Protection (OVP) and source connection of the
PMOS FET switch
Drain Connection of Power NMOS Switch
Power Ground Connection
Analog Ground Connection
Input Voltage Connection
NMOS FET Switch Control Connection
PMOS FET Switch Control Connection
No connect
No connect
No connect
No connect
Die Attache Pad (DAP), to be soldered to the printed circuit
board’s ground plane for enhanced thermal dissipation
5
Bottom Silk Screen
Description
<
OUT2
V
CNTRL
node if V
<
3.5V )
OUT2
www.national.com
20168914
is not