lm2798mm-2.0 National Semiconductor Corporation, lm2798mm-2.0 Datasheet - Page 3

• Manufacturer Part Number: lm2798mm-2.0
• Description: 120ma High Efficiency Step-down Switched Capacitor Voltage Converter With Voltage Monitoring
• Manufacturer: National Semiconductor Corporation

LM2797-1.8, LM2798-1.8, LM2798-2.0
V
LM2798-1.5
V
All Output Voltage Options
I
I
V
E
E
t
f
I
Enable Pin (EN) Characteristics
V
V
I
Q
ON
SW
SC
EN
Symbol
SD
OUT
OUT
R
PEAK
AVG
IH
IL
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Limits in standard typeface and typical values apply for T
temperature range. Unless otherwise specified: 2.6 ≤ V
V
to Ground (Note 3)
Junction Temperature (T
Continuous Power Dissipation
(Note 4)
V
(Note 4)
Storage Temperature Range
Lead Temperature
(Soldering, 5 Sec.)
ESD Rating (Note 5)
IN
OUT
Human-body model:
Machine model
, EN, POK, BATOK pins: Voltage
Short-Circuit to GND Duration
Output Voltage Tolerance
Output Voltage Tolerance
Operating Supply Current
Shutdown Supply Current
Output Voltage Ripple
Peak Efficiency
Average Efficiency over
Li-Ion Input Voltage Range
(Note 11)
Turn-On Time
Switching Frequency
Short-Circuit Current
EN pin Logic-High Input
EN pin Logic-Low Input
EN pin input current
Parameter
J-MAX-ABS
)
2.8V ≤ V
0mA ≤ I
4.2V
0mA ≤ I
2.8V ≤ V
0mA ≤ I
4.2V
0mA ≤ I
I
V(EN) = 0V
LM2798-1.8: V
LM2798-1.8: V
LM2798-1.5: 3.0 ≤ V
LM2798-1.8: 3.0 ≤ V
LM2798-2.0: 3.0 ≤ V
LM2798, V
LM2797, V
V
V
V
OUT
IN
EN
EN
Internally Limited
−65˚C to 150˚C
= 3.6, V
= 0V
= 5.5V
= 0mA
−0.3V to 5.6V
<
<
(Notes 2, 8)
V
V
OUT
OUT
OUT
OUT
IN
IN
(Notes 1,
IN
IN
Unlimited
IN
IN
≤ 4.2V
≤ 4.2V
≤ 5.5V
≤ 5.5V
OUT
≤ 120mA
≤ 120mA
≤ 120mA
≤ 120mA
=2.6V, I
=2.6V, I
150˚C
260˚C
200V
2 kV
IN
IN
IN
= 0V
Conditions
= 3.6V, I
= 3.0V, I
J
≤ 5.5V, V(EN) = V
= 25
IN
IN
IN
OUT
OUT
≤ 4.2V, I
≤ 4.2V, I
≤ 4.2V, I
3
o
=100mA, (Note 12)
=100mA, (Note 12)
C. Limits in boldface type apply over the operating junction
OUT
OUT
Operating Ratings
Thermal Information
Input Voltage Range
Recommended Output Current
Range
Junction Temperature Range
Ambient Temperature Range
(Note 6)
Thermal Resistance, MSOP-8
Resistance, MSOP-8 Package
(θ
JA
= 120mA
= 60mA
OUT
OUT
OUT
) (Note 7)
= 60mA
= 60mA
= 60mA
IN
, C
1
= C
2
= 1µF, C
Min
0.9
-5
-6
-6
-6
0
IN
= C
Typ
400
100
500
0.1
35
20
90
76
82
75
25
30
(Notes 1, 2)
0
OUT
= 10µF. (Note 9)
0mA to 120mA
-40˚C to 125˚C
Max
V
0.4
+5
+6
+6
+6
50
-40˚C to 85˚C
2
IN
2.6V to 5.5V
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220˚C/W
V
V
(Note 10)
(Note 10)
OUT(nom)
OUT(nom)
mV
Units
% of
% of
kHz
mA
µA
µA
nA
µs
%
%
V
V
p-p