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Electrical Characteristics Limits in standard typeface are for T
J = 25C. Limits in boldface type apply over
the full operating junction temperature range (40C
≤ T
J
≤ +125C). Unless otherwise noted V
IN = 3.6V, VOUT = 1.8V, IO =
150mA, EN = V
IN (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
I
Q
DC Bias Current into V
IN
No load, device is not switching
(V
OUT forced higher than
programmed output voltage)
15
30
A
V
UVLO
Minimum V
IN below which VOUT
will be disabled
2.4
V
R
DSON (P)
Pin-Pin Resistance for PFET
V
IN=VGS=3.6V
360
690
m
R
DSON (N)
Pin-Pin Resistance for NFET
V
IN=VGS=3.6V
250
660
m
I
LKG (P)
P Channel Leakage Current
V
DS=5.5V
0.1
1
A
I
LKG (N)
N Channel Leakage Current
V
DS=5.5V
0.1
1.5
A
I
LIM
Switch Peak Current Limit
400
620
750
mA
η
Efficiency
(V
IN = 3.6V, VOUT = 1.8V)
I
LOAD =1mA
91
%
I
LOAD =10mA
94
I
LOAD = 100 mA
94
I
LOAD = 200 mA
94
I
LOAD = 300 mA
92
I
LOAD = 350 mA
90
V
IH
Logic High Input
1.3
V
IL
Logic Low Input
0.4
V
I
EN
Enable (EN) Input Current
0.01
1
A
F
OSC
Internal Oscillator Frequency
PWM Mode
550
1000
1300
kHz
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: The Human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin. MIL-STD-883 3015.7
Note 4: Output voltage specification for the adjustable version includes tolerance of the external resistor divider.
Note 5: The input voltage range recommended for the specified output voltages are given below:
VIN = 2.5V to 5.5V for 0.7V ≤ VOUT < 1.875V
VIN =(VOUT +VDROP OUT) to 5.5V for 1.875 ≤ VOUT≤ 3.3V
Where VDROP OUT =ILOAD *(RDSON (P) +RINDUCTOR)
LM3670
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相关PDF资料
LM368H-6.2 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 6.2 V, MBCY8
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