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LM2612BL Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM2612BL
Description  400mA Sub-miniature, Programmable, Step-Down DC-DC Converter for Ultra Low-Voltage Circuits
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM2612BL Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
PVIN, VDD, to SGND
−0.2V to +6V
PGND to SGND
−0.2V to +0.2V
EN, SYNC/MODE, VID0, VID1 to
SGND
−0.2V to +6V
FB, SW
(GND −0.2V) to
(VDD +0.2V)
Storage Temperature Range
−45˚C to +150˚C
Lead temperature
(Soldering, 10 sec.)
260˚C
Junction Temperature (Note 2)
−25˚C to 125˚C
Minimum ESD Rating
Human body model, C = 100pF, R =
1.5 k
±2kV
Thermal Resistance (
θ
JA)
LM2612ABL/LM2612ATL &
LM2612BBL/LM2612BTL(Note 3)
140˚C/W
Electrical Characteristics
Specifications with standard typeface are for T
A =TJ = 25˚C, and those in bold face type apply over the full Operating Tem-
perature Range (T
A =TJ = −25˚C to +85˚C). Unless otherwise specified, PVIN = VDD = EN = SYNC = 3.6V, VID0 = VID1 =
0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
IN
Input Voltage Range (Note
4)
PVIN = VDD = VID1 = V
IN,
VID0 = 0V
2.8
5.5
V
V
FB
Feedback Voltage
(Note 5)
VID0 = V
IN, VID1 = VIN
1.029
1.05
1.071
V
VID0 = V
IN, VID1 = 0V
1.274
1.30
1.326
VID0 = 0V, VID1 = 0V
1.470
1.50
1.530
VID0 = 0V, VID1 = V
IN
1.764
1.8
1.836
V
HYST
PFM Comparator Hysteresis
Voltage
(Note 6)
PFM Mode (SYNC = 0V)
25
mV
I
SHDN
Shutdown Supply Current
EN = 0V
0.02
3
µA
I
Q1
DC Bias Current into VDD
No switching, PFM mode
(SYNC/MODE = 0V)
160
195
µA
I
Q2
No switching, PWM mode
(SYNC/MODE = V
IN)
605
725
R
DSON (P)
Pin-Pin Resistance for P
FET
395
550
m
R
DSON (N)
Pin-Pin Resistance for N
FET
325
500
m
R
DSON , TC
FET Resistance
Temperature Coefficient
0.5
%/C
I
lim
Switch Peak Current Limit
(Note 7)
LM2612ABL/LM2612ATL
510
710
850
mA
LM2612BBL/LM2612BTL
400
710
980
V
EN_H
EN Positive Going
Threshold Voltage
0.95
1.3
V
V
EN_L
EN Negative Going
Threshold Voltage
0.4
0.80
V
V
SYNC_H
SYNC/MODE Positive
Going Threshold Voltage
0.95
1.3
V
V
SYNC_L
SYNC/MODE Negative
Going Threshold Voltage
0.4
0.84
V
V
ID_H
V
ID0,VID1 Positive Going
Threshold Voltage
0.92
1.3
V
V
ID_L
V
ID0,VID1 Negative Going
Threshold Voltage
0.4
0.83
V
I
VID
VID1, VID0 Pull Down
Current
VID1, VID0 = 3.6V
1.8
3.0
µA
www.national.com
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