LM3405XMK/NOPB National Semiconductor, LM3405XMK/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM3405XMK/NOPB
• Description: IC LED DRVR HP CONST CURR TSOT-6
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3405XMK/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 1.2MHz ~ 1.9MHz
• Voltage - Supply: 3 V ~ 15 V
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-6, TSOT-6
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 92%
• For Use With: LM3405XEVAL - BOARD EVALUATION LM3405X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3405XMKTR

www.national.com
Typical Performance Characteristics
T
A
= 25°C.
Efficiency vs Input Voltage (I
Efficiency vs LED Current
V
FB
vs Temperature
F
= 0.7A)
20178973
20178932
20178927
4
Unless otherwise specified, V
Efficiency vs Input Voltage (I
Oscillator Frequency vs Temperature
Efficiency vs Input Voltage (I
IN
= 12V, V
BOOST
F
F
= 0.35A)
= 1A)
- V
SW
20178931
20178933
20178936
= 5V and