LM3485MM National Semiconductor, LM3485MM Datasheet - Page 6

• Manufacturer Part Number: LM3485MM
• Description: Pulse Width Modulation (PWM) Controller IC
• Manufacturer: National Semiconductor

Specifications of LM3485MM

• Input Voltage Primary Min: 4.5V
• Mounting Type: Surface Mount
• Topology: Buck (Step Down)
• Control Mode: Hysteretic
• Duty Cycle Max: 100%
• Input Voltage Primary Max: 35V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
Typical Performance Characteristics
Minimum ON Time vs. Temperature
PGATE Voltage vs Input Voltage
Operating ON Time vs
Output Load Current
(V
IN
= 12V)
20034603
20034612
20034640
Unless otherwise specified, T
6
Efficiency vs Load Current
(V
Typical V
Operating ON Time vs
Output Load Current
OUT
= 3.3V, L = 6.8µH)
(V
V
J
IN
IN
PGATE
= 25˚C (Continued)
= 4.5V)
= 9V
vs Time
20034645
20034622
20034617