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LM20502SILR Folha de dados(PDF) 7 Page - Texas Instruments

Nome de Peças LM20502SILR
Descrição Electrónicos  2A SIMPLE SWITCHER Nano Module
Download  37 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM20502SILR Folha de dados(HTML) 7 Page - Texas Instruments

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LMZ20502
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SNVS852C – JUNE 2012 – REVISED APRIL 2015
7.6 System Characteristics
The following specifications apply to the circuit found in Figure 16 with the appropriate modifications from Table 2. These
parameters are not tested in production and represent typical performance only. Unless otherwise stated the following
conditions apply: TA = 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOUT = 1.2 V,
0.4%
VIN = 5 V, IOUT = 0 A to 2 A, PWM
Load
Percent output voltage change
VOUT = 1.8 V
0.4%
Regulation
for the given load current change
VIN = 5 V, IOUT = 0 A to 2 A, PWM
VOUT = 3.3 V
0.2%
VIN = 5 V, IOUT = 0 A to 2 A, PWM
VOUT = 1.2 V
0.2%
IOUT = 2 A, VIN = 3 V to 5 V, PWM
Percent output voltage change
Line
VOUT = 1.8 V
for the given change in input
0.15%
Regulation
IOUT = 2 A, VIN = 3 V to 5 V, PWM
voltage
VOUT = 3.3 V
0.18%
IOUT = 2 A,VIN = 4 V to 5 V, PWM
VOUT = 1.2 V
3.3
IOUT = 1 A, VIN = 5 V, PWM
VOUT = 1.8 V
VR-PWM
Output voltage ripple in PWM
3.3
mV pk-pk
IOUT = 1 A, VIN = 5 V, PWM
VOUT = 3.3V
4.2
IOUT= 1 A, VIN = 5 V, PWM
VOUT = 1.2V
22
IOUT= 1 mA, VIN = 3 V, PFM
VOUT = 1.8 V
VR-PFM
Output voltage ripple in PFM
22
mV pk-pk
IOUT= 1 mA, VIN=3 V, PFM
VOUT = 3.3 V
40
IOUT = 1 mA, VIN = 5 V, PFM
VOUT = 1.2 V
VIN = 5 V, IOUT = 0 A to 2 A, Tr = Tf = 2 µs,
±115
PWM
Output voltage deviation from
VOUT = 1.8 V
Load
nominal due to a load current
VIN = 5 V, IOUT = 0 A to 2 A, Tr = Tf = 2 µs,
±100
mV
Transient
step
PWM
VOUT = 3.3 V
VIN = 5 V, IOUT = 0 A to 2 A, Tr = Tf = 2 µs,
±150
PWM
VOUT = 1.2V
IOUT = 1 A, VIN = 3 V to 5 V, Tr = Tf = 50
25
µs, PWM
VOUT = 1.8 V
Line
Output voltage deviation due to
IOUT = 1 A, VIN = 3 V to 5 V, Tr = Tf = 50
30
mV pk-pk
Transient
an input voltage step
µs, PWM
VOUT = 3.3 V
IOUT = 1 A, VIN = 4 V to 5 V, Tr = Tf = 50
20
µs, PWM
VOUT = 1.2 V
87%
VIN = 3 V
VOUT = 1.8 V
Peak efficiency
91%
VIN = 3 V
VOUT = 3.3 V
94%
VIN = 4.2 V
η
VOUT = 1.2 V
74%
VIN = 3 V, IOUT = 2 A
VOUT = 1.8 V
Full load efficiency
79%
VIN = 3 V, IOUT = 2 A
VOUT = 3.3 V
89%
VIN = 4.2 V, IOUT = 2 A
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