LM3552SDEV National Semiconductor, LM3552SDEV Datasheet - Page 2

• Manufacturer Part Number: LM3552SDEV
• Description: BOARD EVALUATION LM3552SD
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3552SDEV

• Current - Output / Channel: 700mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 4 V
• Features: Flash Timeout Protection
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM3552
• Core Chip: LM3552
• Topology: Boost
• No. Of Outputs: 1
• Output Current: 1A
• Input Voltage: 2.7V To 5.5V
• Development Tool Type: Hardware - Eval/Demo Board
• Mcu Supported Families: LM3552
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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Connection Diagram
Pin Descriptions
Ordering Information
1,7,DAP
Order Number
Pin
LM3551SDX
LM3552SDX
13
10
12
11
14
9
8
3
5
4
2
6
LM3551SD
LM3552SD
SD(LM3551)
EN(LM3552)
FET-T
FET-F
AGND
Name
OVP
GND
FTO
SW
T/F
V
SS
FB
V
IN
C
Input Voltage. Input range: 2.7V to 5.5V.
TORCH/FLASH Pin. Low = Torch Mode, High = Flash Mode
Switch Pin
Over Voltage Protection Pin
Compensation network connection. Connected to the output of the voltage error amplifier.
Shutdown pin logic input. High = Shutdown, Low = Enabled
Enable pin logic input. High = Enabled, Low = Shutdown
Flash Timeout. External capacitor determines max. duration allowed flash pulse
Soft Start Pin
Feedback Pin
Torch FET Drain
Flash FET Drain
Ground
Analog Ground. Connect the ground of the compensation components, C
AGND. AGND must be connected to the GND pin through a low impedance connection.
SD / EN
SD
SD
EN
EN
NS Package Number SDA14B
14 Pin Dual LLP Package
Package Marking
2
L3551SD
L3551SD
L3552SD
L3552SD
Function
1000 units, Tape-and-Reel
4500 units, Tape-and-Reel
1000 units, Tape-and-Reel
4500 units, Tape-and-Reel
Supplied As
FTO
and soft start cap to
20151202