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LT1930ES5#TRPBF

Description
Conv DC-DC 2.45V to 16V Step Up Single-Out 1.255V to 34V Automotive 5-Pin TSOT-23 T/R
File Size201KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LT1930ES5#TRPBF Overview

Conv DC-DC 2.45V to 16V Step Up Single-Out 1.255V to 34V Automotive 5-Pin TSOT-23 T/R

LT1930ES5#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeStep Up
Output TypeAdjustable
Switching Frequency (kHz)1400
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)1.255 to 34
Minimum Input Voltage (V)2.45
Maximum Input Voltage (V)16
Operating Supply Voltage (V)2.45 to 16
Typical Switch Current (A)1.2
Typical Quiescent Current (uA)4200
Line Regulation0.05%/V
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count5
Standard Package NameSOT
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed5
Lead ShapeGull-wing
FEATURES
s
s
s
s
s
s
s
s
s
s
s
LT1930/LT1930A
1A, 1.2MHz/2.2MHz,
Step-Up DC/DC Converters
in ThinSOT
DESCRIPTIO
The LT
®
1930 and LT1930A are the industry’s highest
power SOT-23 switching regulators. Both include an
internal 1A, 36V switch allowing high current outputs to be
generated in a small footprint. The LT1930 switches at
1.2MHz, allowing the use of tiny, low cost and low height
capacitors and inductors. The faster LT1930A switches at
2.2MHz, enabling further reductions in inductor size.
Complete regulator solutions approaching one tenth of a
square inch in area are achievable with these devices.
Multiple output power supplies can now use a separate
regulator for each output voltage, replacing cumbersome
quasi-regulated approaches using a single regulator and
custom transformers.
A constant frequency internally compensated current mode
PWM architecture results in low, predictable output noise
that is easy to filter. Low ESR ceramic capacitors can be
used at the output, further reducing noise to the millivolt
level. The high voltage switch on the LT1930/LT1930A is
rated at 36V, making the device ideal for boost converters
up to 34V as well as for single-ended primary inductance
converter (SEPIC) and flyback designs. The LT1930 can
generate 5V at up to 480mA from a 3.3V supply or 5V at
300mA from four alkaline cells in a SEPIC design.
The LT1930/LT1930A are available in the 5-lead ThinSOT
package.
1.2MHz Switching Frequency (LT1930)
2.2MHz Switching Frequency (LT1930A)
Low V
CESAT
Switch: 400mV at 1A
High Output Voltage: Up to 34V
5V at 480mA from 3.3V Input (LT1930)
12V at 250mA from 5V Input (LT1930A)
Wide Input Range: 2.6V to 16V
Uses Small Surface Mount Components
Low Shutdown Current: < 1µA
Low Profile (1mm) ThinSOT
TM
Package
Pin-for-Pin Compatible with the LT1613
APPLICATIO S
s
s
s
s
s
s
s
s
s
TFT-LCD Bias Supply
Digital Cameras
Cordless Phones
Battery Backup
Medical Diagnostic Equipment
Local 5V or 12V Supply
External Modems
PC Cards
xDSL Power Supply
, LTC and LT are registered trademarks of Linear Technology Corporation
ThinSOT is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
V
IN
5V
C1
2.2µF
SHDN
4
L1
10µH
5
V
IN
LT1930
SHDN
GND
2
FB
3
1
SW
D1
90
V
OUT
12V
300mA
85
V
IN
= 3.3V
80
R1
113k
EFFICIENCY (%)
C3*
10pF
C2
4.7µF
75
70
65
60
R2
13.3k
C1: TAIYO-YUDEN X5R LMK212BJ225MG
C2: TAIYO-YUDEN X5R EMK316BJ475ML
D1: ON SEMICONDUCTOR MBR0520
L1: SUMIDA CR43-100
*OPTIONAL
1930/A F01
55
50
0
200
100
300
LOAD CURRENT (mA)
400
1930 TA01
Figure 1. 5V to 12V, 300mA Step-Up DC/DC Converter
U
U
U
Efficiency
V
IN
= 5V
1
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