LM3477MM National Semiconductor, LM3477MM Datasheet - Page 22
LM3477MM
Manufacturer Part Number
LM3477MM
Description
Pulse Width Modulation (PWM) Controller IC
Manufacturer
National Semiconductor
Specifications of LM3477MM
Input Voltage Primary Min
2.95V
Mounting Type
Surface Mount
Topology
Buck (Step Down)
Control Mode
Current
Duty Cycle Max
93%
Input Voltage Primary Max
35V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM3477MM
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM3477MM/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM3477MMX
Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
LM3477MMX/NOPB
Manufacturer:
TI
Quantity:
6 223
www.national.com
Compensation
(Continued)
22
A third option is to strategically place the ESR zero f
the output capacitor to cancel out the sampling pole. In this
case, the capacitor C
f
this will depend on how low Q is.
ESR
should be placed around the crossover frequency f
C2
will not be used to cancel out f
ESR
c
ESR
, but
of
.