LM3350 MWC/NOPB National Semiconductor, LM3350 MWC/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM3350 MWC/NOPB
• Manufacturer: National Semiconductor

Specifications of LM3350 MWC/NOPB

• Lead Free Status / Rohs Status: Compliant

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V
V
V
I
I
Z
f
V
I
P
Symbol
Q1
Q2
SW
Enable
out
out
out
in
Enable
η
Electrical Characteristics
2/3 Step-Down Voltage Converter
Specifications in standard type face are for T
range. Unless otherwise specified, V
Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the
listed test conditions.
Note 2: For operation at elevated temperatures, LM3350 must be derated based on package thermal resistance of θ
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 kW resistor into each pin.
Note 4: Typical numbers are at 25°C and represent the most likely parametric norm.
Note 5: Limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality
Control (SQC) methods. The limits are used to calculate National's Averaging Outgoing Quality Level (AOQL).
Note 6: The internal oscillator runs at 1.6 MHz, the output switches operate at one half of the oscillator frequency, f
NL
FL
Output Voltage at No
Load
Output Voltage at 50
mA
Input Supply Voltage
Range
Quiescent Current
Quiescent Current
Output Source
Impedance
Switching Frequency
Enable Threshold
Voltage
Leakage Current
Power Efficiency
Parameter
C1, C2, C
at 1MHz. I
C1, C2, C
at 1MHz. I
Shutdown Mode, V
Current into pin V
Normal Mode, I
V
I
(Note
Current into ENABLE pin; ENABLE = 5V
and all other pins at ground
load
high
100002 Version 6 Revision 2
high
= 50 mA
6)
= 5V, V
in
in
load
load
j
and C
and C
= 25°C, and those with boldface type apply over full operating temperature
= 0 A
=50 mA
Enable
Conditions
Ioad
high
out
out
Enable
= 0A; Current into pin
: 0.33µF, esr
: 0.33 µF, esr
= 5V, I
= 0V, I
load
Print Date/Time: 2010/12/28 23:06:13
4
= 50 mA.
load
≤
≤
=0 A;
0.33 Ω
0.33Ω
Typ
0.025
0.25
800
(Note
3.3
3.2
2.5
1.8
1.7
90
5
4)
OSC
ja
and T
= 2f
Limits
SW
j
max, T
.
1100
500
2.2
5.5
3.3
1.0
2.5
3
3
1
(Note
j
= T
5)
A
+ θ
ja
P
D
.
kHz(Max)
mA(Max)
kHz(Min)
µA(Max)
µA(Max)
Ω (Max)
V(Max)
V(Max)
V(Min)
V(Min)
Units
kHz
mA
µA
µA
%
V
V
V
Ω
V