LM3678SD-1.2/NOPB National Semiconductor, LM3678SD-1.2/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM3678SD-1.2/NOPB
• Description: IC CONV DC-DC STDN LV 1.5A 10LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Step-Down (Buck)r

Specifications of LM3678SD-1.2/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8V, 1.2V
• Current - Output: 1.5A
• Frequency - Switching: 3.3MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-LLP
• For Use With: LM3678SD-1.2EV - BOARD EVAL FOR LM3678SD-1.2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM3678SD-1.2TR

Typical Performance Characteristics
LM3678SD, Circuit of Figure 1, V
= 3.6V, V
= 1.2V, C
= 10µF, C
= 22µF, and T
= 25°C, unless otherwise noted.
IN
OUT
IN
OUT
A
Quiescent Supply Current vs. Temperature
Switching Frequency vs. Temperature
20204533
20204535
NFET_ R
vs. Temperature
PFET_R
vs. Temperature
DSON
DSON
20204536
20204537
ILIMIT vs. Temperature (Open Loop)
Efficiency PWM Mode vs. ILOAD (0.8V)
20204522
20204538
5
www.national.com