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LTC1844ES5-3.3#PBF

Description
LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C
CategoryPower/power management    The power supply circuit   
File Size184KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric Compare View All

LTC1844ES5-3.3#PBF Overview

LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C

LTC1844ES5-3.3#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSOT
package instructionVSSOP, TSOP5/6,.11,37
Contacts5
Manufacturer packaging codeS5
Reach Compliance Codecompliant
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 10.15 V
Nominal dropback voltage 10.09 V
Maximum absolute input voltage7 V
Maximum input voltage6.5 V
Minimum input voltage1.6 V
JESD-30 codeR-PDSO-G5
JESD-609 codee3
length2.9 mm
Maximum grid adjustment rate0.02%
Maximum load regulation0.02%
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max70 °C
Working temperature TJ-Min
Maximum output current 10.15 A
Maximum output voltage 13.3578 V
Minimum output voltage 13.2423 V
Nominal output voltage 13.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1 mm
surface mountYES
technologyCMOS
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
Maximum voltage tolerance1.75%
width1.625 mm
LTC1844 Series
150mA, Micropower,
Low Noise, VLDO
Linear Regulator
FEATURES
DESCRIPTIO
Very Low Dropout:
90mV at 150mA
30mV at 50mA (LTC1844-3.3)
Wide Input Voltage Range: 1.6V to 6.5V
Low 35µA Supply Current, Even in Dropout
Low Noise: 60µV
RMS
(10Hz to 100kHz)
±1.75%
Voltage Accuracy Over Temperature,
Voltage and Current Ranges
Fast Transient Response
10nA Supply Current in Shutdown
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 2.8V, 3.3V
Adjustable Output Voltage: 1.25V to 6V
Output Current Limit
Reverse-Battery and Reverse-Current Protection
No Protection Diodes Needed
Stable with 1µF Output Capacitor
Stable with Ceramic Capacitors
Short-Circuit and Thermal Overload Protection
Low Profile (1mm) SOT-23 Package
The LTC
®
1844 Series are low noise VLDO
TM
(very low
dropout) linear regulators designed for low power/portable
applications. These regulators can operate from input
voltages as low as 1.6V. Typical output noise is only
30µV
RMS
and typical dropout for the LTC1844-3.3 is just
90mV at the maximum load current of 150mA, reducing to
30mV at 50mA.
The internal P-channel MOSFET pass transistor requires
no base current, allowing the device to draw only 35µA
during normal operation, independent of the dropout
voltage and load current. The quiescent current falls to a
negligible 10nA during shutdown.
Other features include high output voltage accuracy,
excellent transient response, stability with ultralow ESR
ceramic capacitors as small as 1µF, reverse-battery and
reverse-current protection, short-circuit and thermal
overload protection and output current limiting.
The LTC1844 regulators are available in a low profile
(1mm) SOT-23 (ThinSOT
TM
) package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
VLDO and ThinSOT are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Portable Instruments and Battery-Powered Systems
Bluetooth/802.11 Cards
Cellular Phones
PDAs and Notebook Computers
TYPICAL APPLICATIO
V
IN
3.3V TO 6.5V
1µF
OFF ON
LTC1844-3.3 Dropout Voltage vs Load Current
120
Fixed Voltage Low Noise, VLDO Linear Regulator
100
IN
OUT
LTC1844-3.3
BYP
SHDN
GND
1µF
V
OUT
3.3V
DROPOUT VOLTAGE (mV)
80
60
40
20
0
0.1µF
1844 TA01
0
25
U
50
75
100
I
OUT
(mA)
125
150
1844 TA02
U
U
1844fa
1

LTC1844ES5-3.3#PBF Related Products

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Description LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? conform to conform to conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code SOT SOT SOT SOT
package instruction VSSOP, TSOP5/6,.11,37 VSSOP, TSOP5/6,.11,37 VSSOP, TSOP5/6,.11,37 VSSOP, TSOP5/6,.11,37
Contacts 5 5 5 5
Manufacturer packaging code S5 S5 S5 S5
Reach Compliance Code compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99
Adjustability FIXED FIXED FIXED FIXED
Maximum drop-back voltage 1 0.15 V 0.3 V 0.2 V 0.165 V
Nominal dropback voltage 1 0.09 V 0.23 V 0.135 V 0.105 V
Maximum absolute input voltage 7 V 7 V 7 V 7 V
Maximum input voltage 6.5 V 6.5 V 6.5 V 6.5 V
Minimum input voltage 1.6 V 1.6 V 1.6 V 1.6 V
JESD-30 code R-PDSO-G5 R-PDSO-G5 R-PDSO-G5 R-PDSO-G5
JESD-609 code e3 e3 e3 e3
length 2.9 mm 2.9 mm 2.9 mm 2.9 mm
Maximum grid adjustment rate 0.02% 0.03% 0.02% 0.02%
Maximum load regulation 0.02% 0.02% 0.02% 0.02%
Humidity sensitivity level 1 1 1 1
Number of functions 1 1 1 1
Output times 1 1 1 1
Number of terminals 5 5 5 5
Working temperatureTJ-Max 70 °C 70 °C 70 °C 70 °C
Maximum output current 1 0.15 A 0.15 A 0.15 A 0.15 A
Maximum output voltage 1 3.3578 V 1.8315 V 2.5438 V 2.849 V
Minimum output voltage 1 3.2423 V 1.7685 V 2.4563 V 2.751 V
Nominal output voltage 1 3.3 V 1.8 V 2.5 V 2.8 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code VSSOP VSSOP VSSOP VSSOP
Encapsulate equivalent code TSOP5/6,.11,37 TSOP5/6,.11,37 TSOP5/6,.11,37 TSOP5/6,.11,37
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Regulator type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height 1 mm 1 mm 1 mm 1 mm
surface mount YES YES YES YES
technology CMOS CMOS CMOS CMOS
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) 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 30 30 30 30
Maximum voltage tolerance 1.75% 1.75% 1.75% 1.75%
width 1.625 mm 1.625 mm 1.625 mm 1.625 mm
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