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LM2775DSGR Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza LM2775DSGR
Descripción Electrónicos  LM2775 Switched Capacitor 5-V Boost Converter
Download  27 Pages
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

LM2775DSGR Datasheet(HTML) 5 Page - Texas Instruments

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VIN (V)
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
D001
TA = -40°C
TA = +25°C
TA = +85°C
VIN (V)
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
D002
TA = -40°C
TA = +25°C
TA = +85°C
LM2775
www.ti.com
SNVSA57 – MAY 2015
6.5 Electrical Characteristics
Typical limits tested at TA = 25°C. Minimum and maximum limits apply over the full operating ambient temperature range
(
−40°C ≤ TA ≤ 85°C). VIN = 3.6 V, CIN = COUT = 2.2 µF, C1 = 1 µF
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOUT
Output voltage regulation
IOUT = 180 mA
4.8
5
5.2
V
IOUT = 0 mA, PFM = ‘1’
75
150
µA
IQ
Quiescent current
IOUT = 0 mA, PFM = ‘0’
5
mA
ISD
Shutdown current
EN = '0'
0.7
3
µA
IOUTDIS
Output discharge current
OUTDIS = '1'
500
µA
ICL
Input current limit
600
mA
VIL
Input logic low: EN, OUTDIS, PFM
0
0.4
V
VIH
Input logic high: EN, OUTDIS, PFM
1.2
VIN
V
VIN falling
2.4
UVLO
Undervoltage lockout
V
VIN rising
2.6
6.6 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ƒSW
Switching frequency
1.7
2
2.3
MHz
6.7 Typical Characteristics
TA = 25°C, VIN = 3.6 V, CIN = COUT = 10 µF (10-V 0402 case), C1 = 1 µF (10-V 0402 case), VEN = VIN.
ILOAD = 200 mA
PFM = '0'
ILOAD = 200 mA
PFM = '1'
Figure 1. PWM Output Regulation
Figure 2. PFM Output Regulation
Copyright © 2015, Texas Instruments Incorporated
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