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LM3209-G3 데이터시트(PDF) 5 Page - Texas Instruments

부품명 LM3209-G3
상세설명  Seamless-Transition Buck-Boost Converter
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LM3209-G3 데이터시트(HTML) 5 Page - Texas Instruments

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LM3209-G3
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SNVS626B – NOVEMBER 2009 – REVISED MARCH 2013
SYSTEM CHARACTERISTICS
The following spec table entries are specified by design and verifications providing the component values in the typical
application circuit are used (L = 2.2 µH, DCR = 110 m
Ω, MIPSZ2520D2R2/FDK; CIN = 10 µF 6.3V, C1608X5R0J106K/TDK;
COUT = 4.7 µF, 6.3V, ECJ1VB0J475K/Panasonic). These parameters are not verified by production testing. Min and Max
limits in apply over the full operating ambient temperature range (
−30°C ≤ TA ≤ 85°C) and over the VIN range (= PVIN = EN)
= 2.7V to 5.5V unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Turn on time (time for output to
EN = L to H, VIN = 3.7V,
TON
35
50
µs
reach 0V
→90% × 3.5V)
IOUT = 0 mA
Turn off time (time output to
EN = H to L, VIN = 3.7V,
TOFF
50
100
µs
reach 3.5V
→10% × 3.5V)
IOUT = 0 mA
IOUT_MAX
Max output current
VIN ≥ 3.2V, VOUT = 4.2V
500
mA
Boost (% M4 on)
50
DMAX
Maximum Duty Cycle
%
Buck (% M1 on)
100
VCON = 1V,
CCON
VCON input capacitance
10
pF
Test frequency = 100 kHz
VCON_LIN
VCON linearity
0.2V
≤ VCON ≤ 1.4V
−70
+70
mV
VIN ≥ 3.2V, 0.6 ≤ VOUT ≤ 4.2V,
Ripple voltage
15
50
mV
0 mA
≤ IOUT ≤ 430 mA, TA = 25°C
VO_RIPPLE
VIN = 3.0V to 5.0V,
Ripple voltage in mode transition
VIN = TR = TF = 30s
50
mV
3.3V
≤ VOUT ≤ 4.2V
VCON = 0.2V, IOUT = 70 mA
0.530
0.600
0.670
VCON = 0.4V, IOUT = 70 mA
1.130
1.200
1.270
VCON = 0.833V, IOUT = 200 mA
2.430
2.50
2.57
VOUT
Output Voltage Accuracy
V
VCON = 1.167V, IOUT = 300 mA
3.431
3.50
3.57
VCON = 1.333V, IOUT = 350 mA
3.930
4.000
4.070
VCON = 1.4V, IOUT = 500 mA, VIN ≥ 3.2V
4.13
4.20
4.27
VIN = 3.2V to 4.9V, VIN TR = TF = 10 µs,
Line Regulation
10
mV
VOUT = 3.5V
ΔVOUT
IOUT = 0 mA to 500 mA,
Load Regulation
IOUT = TR = TF = 1 µs,
20
mV
VIN = 3.2V to 4.9V
VCON transient response
200
mV
overshoot
VIN = 3.2V to 4.2V,
VCON transient response rise
VOUT = 0.8V to 4.0V,
VCON_TR
20
time
VCON Tr = Tf = 1 µs,
µs
RLOAD = 11.4Ω
VCON transient response fall
50
time
VIN = 3.7V, VOUT = 1.2V,
80
85
IOUT = 70 mA
VIN = 3.7V, VOUT = 2.5V,
90
95
IOUT = 200 mA
η
Efficiency
%
VIN = 3.7V, VOUT = 3.5V,
90
95
IOUT = 300 mA
VIN = 3.7V, VOUT = 4.1V,
85
95
IOUT = 350 mA
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