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LM2623QNHLTQ1 Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce LM2623QNHLTQ1
Description  Automotive Gated-Oscillator-Based DC-DC Boost Converter
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM2623QNHLTQ1 Fiches technique(HTML) 5 Page - Texas Instruments

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LM2623-Q1
www.ti.com
SNVSAO5 – OCTOBER 2017
Product Folder Links: LM2623-Q1
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Copyright © 2017, Texas Instruments Incorporated
(1)
VDD tied to BOOT and EN pins. Frequency pin tied to VDD through 121-KΩ resistor. VDD_ST = VDD when start-up occurs. VIN is VDD + D1
voltage (usually 10 mV to 50 mV at start-up).
(2)
This is the current into the VDD pin.
(3)
This is the total current into pins VDD, BOOT, SW, and FREQ.
(4)
When the EN pin is below VEN_LO, the regulator is shut down; when it is above VEN_HI, the regulator is operating.
6.5 Electrical Characteristics
Limits apply for TJ = 25°C and VDD = VOUT = 3.3 V, unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
GENERAL
VDD_ST
Start-up supply voltage 25°C
ILOAD = 0 mA
(1)
1.1
V
VIN_OP
Minimum operating supply voltage (once
started)
ILOAD = 0 mA
0.65
0.9
V
VFB
FB pin voltage
1.24
V
–40°C to 85°C
1.2028
1.2772
–40°C to 125°C
1.2028
1.2772
VOUT_MA
X
Maximum output voltage
14
V
η
Efficiency
VIN = 3.6 V; VOUT = 5 V, ILOAD = 500 mA
87%
VIN = 2.5 V; VOUT = 3.3 V, ILOAD = 200
mA
87%
D
Switch duty cycle
17%
IDD
Operating quiescent current(2)
FB pin > 1.3 V, EN pin at VDD
80
µA
FB pin > 1.3 V, EN pin at VDD , –40°C to
85°C
110
FB pin > 1.3 V, EN pin at VDD, –40°C to
125°C
110
ISD
Shutdown quiescent current(3)
VDD, BOOT, and SW pins at 5 V, EN pin
< 200 mV
0.01
µA
VDD, BOOT, and SW pins at 5 V, EN pin
< 200 mV, –40°C to 85°C
2.5
VDD, BOOT, and SW pins at 5 V, EN pin
< 200 mV, –40°C to 125°C
2.5
ICL
Switch peak current limit
2.2
2.85
A
RDSON
MOSFET switch on resistance
0.17
Ω
–40°C to 85°C
0.26
–40°C to 125°
0.26
ENABLE SECTION
VEN_LO
EN pin voltage low(4)
–40°C to 85°C
0.15 VDD
V
–40°C to 125°C
0.15 VDD
VEN_HI
EN pin voltage high(4)
–40°C to 85°C
0.7 VDD
V
–40°C to 125°C
0.7 VDD


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