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LM4510 データシート(PDF) 1 Page - Texas Instruments

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部品番号 LM4510
部品情報  LM4510 Synchronous Step-Up DC/DC Converter with True Shutdown Isolation
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

LM4510 データシート(HTML) 1 Page - Texas Instruments

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IOUT (mA)
100
90
80
70
60
50
40
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
VIN = 5.5V
VIN = 4.5V
VIN = 2.7V
VIN = 3.6V
VIN 2.7V ± 5.5V
4.7 2F
LOAD
PGND
EN
AGND
COMP
SS
FB
L = 4.7 2H
VIN
SW
VOUT
CIN
CS
RF1
RF2
CC1
RC
CC2
VOUT 16.0V
COUT
10 2F
240k
20.5k
46.4k
2.2 nF
15 pF
10 nF
Product
Folder
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LM4510
SNVS533D – SEPTEMBER 2007 – REVISED NOVEMBER 2014
LM4510 Synchronous Step-Up DC/DC Converter with True Shutdown Isolation
1 Features
3 Description
The LM4510 is a current mode step-up DC/DC
1
18 V@ 80 mA from 3.2 V Input
converter
with
a
1.2-A
internal
NMOS
switch
5 V @ 280 mA from 3.2 V Input
designed to deliver up to 120 mA at 16 V from a Li-
No External Schottky Diode Required
Ion battery.
85% Peak Efficiency
The device's synchronous switching operation (no
Soft Start
external Schottky diode) at heavy-load, and non-
synchronous
switching
operation
at
light-load,
True Shutdown Isolation
maximizes power efficiency.
Stable with Small Ceramic or Tantalum Output
True shutdown function by synchronous FET and
Capacitors
related circuitry ensures input and output isolation.
Output Short-Circuit Protection
A programmable soft-start circuit allows the user to
Feedback Fault Protection
limit the amount of inrush current during start-up. The
Input Undervoltage Lock Out
output voltage can be adjusted by external resistors.
Thermal Shutdown
The
LM4510
features
advanced
short-circuit
0.002-µA Shutdown Current
protection to maximize safety during output to ground
Wide Input Voltage Range: 2.7 V to 5.5 V
short
condition.
During
shutdown
the
feedback
1-MHz Fixed Frequency Operation
resistors and the load are disconnected from the
input to prevent leakage current paths to ground.
Low-profile 10-pin WSON Package (3 mm x 3 mm
x 0.8 mm)
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
2 Applications
LM4510
WSON (10)
3.00 mm x 3.00 mm
Organic LED Panel Power Supply
(1) For all available packages, see the orderable addendum at
Charging Holster
the end of the datasheet.
White LED Backlight
space
USB Power Supply
space
Class D Audio Amplifier
Camera Flash LED Driver
Typical Application Circuit
Efficiency at VOUT = 16 V
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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