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LTC1928ES6-5#TR

Description
Switching Voltage Regulators LTC1928-5 - Doubler Charge Pump with Low Noise Linear Regulator in SOT-23
CategoryPower/power management    The power supply circuit   
File Size300KB,10 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1928ES6-5#TR Overview

Switching Voltage Regulators LTC1928-5 - Doubler Charge Pump with Low Noise Linear Regulator in SOT-23

LTC1928ES6-5#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionLSSOP,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHED CAPACITOR REGULATOR
Maximum input voltage4.4 V
Minimum input voltage2.7 V
Nominal input voltage3 V
JESD-30 codeR-PDSO-G6
JESD-609 codee0
length2.95 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.03 A
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.45 mm
surface mountYES
Switch configurationDOUBLER INVERTER
Maximum switching frequency620 kHz
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width1.625 mm
LTC1928-5
Doubler Charge Pump with
Low Noise Linear Regulator
in ThinSOT
FEATURES
n
n
n
n
n
n
n
n
n
n
n
DESCRIPTION
The
LTC
®
1928-5
is a doubler charge pump with an internal
low noise, low dropout (LDO) linear regulator. The part is
designed to provide a low noise boosted supply voltage for
powering noise sensitive devices such as high frequency
VCOs in wireless applications.
An internal charge pump converts a 2.7V to 4.4V input to a
boosted output, while the internal LDO regulator converts
the boosted voltage to a low noise regulated output. The
regulator is capable of supplying up to 30mA of output
current. Shutdown reduces the supply current to <8µA,
removes the load from V
IN
by disabling the regulator and
discharges V
OUT
to ground through a 200Ω switch.
The LTC1928-5 LDO regulator is stable with only 2µF on
the output. Small ceramic capacitors can be used, reduc-
ing PC board area.
The LTC1928-5 is short-circuit and overtemperature pro-
tected. The part is available in a 6-pin low profile (1mm)
ThinSOT package.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT and Burst Mode are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Low Output Noise: 90µV
RMS
(100kHz BW)
Fixed Output Voltage: 5V
Input Voltage Range: 2.7V to 4.4V
No Inductors Required
Uses Small Ceramic Capacitors
Output Current Up to 30mA
550kHz Switching Frequency
Low Operating Current: 190µA
Low Shutdown Current: 4µA
Internal Thermal Shutdown and Current Limiting
Low Profile (1mm) ThinSOT™ Package
APPLICATIONS
n
n
n
n
n
n
n
n
VCO Power Supplies for Cellular Phones
2-Way Pagers
Wireless PCMCIA Cards
Portable Medical Instruments
Low Power Data Acquisition
Remote Transmitters
White LED Drivers
GaAs Switches
TYPICAL APPLICATION
Output Noise (BW = 10Hz to 2.5MHz)
LTC1928-5
V
IN
2.7V TO 4.4V
1
4.7µF
0.47µF
5
6
V
IN
CP
V
OUT
CPO
3
4
2
4.7µF
5V
V
OUT
4.7µF
V
OUT
200µV/DIV
CN/SHDN GND
19285 F01
Figure 1. Low Noise 5V Power Supply
C
CPO
= C
OUT
= 4.7µF 100µs/DIV
I
OUT
= 10mA
V
IN
= 3V
V
OUT
= 5A
T
A
= 25°C
19285 TA01
19285fa
For more information
www.linear.com/LTC 1928-5
1

LTC1928ES6-5#TR Related Products

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Description Switching Voltage Regulators LTC1928-5 - Doubler Charge Pump with Low Noise Linear Regulator in SOT-23 Switching Voltage Regulators LTC1928-5 - Doubler Charge Pump with Low Noise Linear Regulator in SOT-23 Switching Voltage Regulators LTC1928-5 - Doubler Charge Pump with Low Noise Linear Regulator in SOT-23 Switching Voltage Regulators Doubler Charge Pump w/Low Noise LDO
Is it Rohs certified? incompatible incompatible incompatible conform to
Maker ADI ADI ADI ADI
package instruction LSSOP, LSSOP, LSSOP, LSSOP,
Reach Compliance Code not_compliant not_compliant not_compliant compliant
Analog Integrated Circuits - Other Types SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR SWITCHED CAPACITOR REGULATOR
Maximum input voltage 4.4 V 4.4 V 4.4 V 4.4 V
Minimum input voltage 2.7 V 2.7 V 2.7 V 2.7 V
Nominal input voltage 3 V 3 V 3 V 3 V
JESD-30 code R-PDSO-G6 R-PDSO-G6 R-PDSO-G6 R-PDSO-G6
JESD-609 code e0 e0 e0 e3
length 2.95 mm 2.95 mm 2.95 mm 2.95 mm
Humidity sensitivity level 1 1 1 1
Number of functions 1 1 1 1
Number of terminals 6 6 6 6
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C
Maximum output current 0.03 A 0.03 A 0.03 A 0.03 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code LSSOP LSSOP LSSOP LSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235 235 250
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.45 mm 1.45 mm 1.45 mm 1.45 mm
surface mount YES YES YES YES
Switch configuration DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER DOUBLER INVERTER
Maximum switching frequency 620 kHz 620 kHz 620 kHz 620 kHz
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) MATTE TIN (SN)
Terminal form GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.95 mm 0.95 mm 0.95 mm 0.95 mm
Terminal location DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 20 20 NOT SPECIFIED
width 1.625 mm 1.625 mm 1.625 mm 1.625 mm
ECCN code EAR99 EAR99 EAR99 -
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