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LT1934ES6

Description
0.49 A SWITCHING REGULATOR, PDSO6
CategoryPower/power management    The power supply circuit   
File Size348KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Related ProductsFound8parts with similar functions to LT1934ES6
Download Datasheet Parametric Compare View All

LT1934ES6 Overview

0.49 A SWITCHING REGULATOR, PDSO6

LT1934ES6 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOT
package instruction1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
Contacts6
Manufacturer packaging codeS6
Reach Compliance Code_compli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Maximum input voltage34 V
Minimum input voltage4 V
Nominal input voltage10 V
JESD-30 codeR-PDSO-G6
JESD-609 codee0
length2.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature
Maximum output current0.49 A
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1 mm
surface mountYES
Switch configurationBUCK
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width1.625 mm
LT1934/LT1934-1
Micropower Step-Down
Switching Regulators
in ThinSOT
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Wide Input Voltage Range: 3.2V to 34V
Micropower Operation: I
Q
= 12µA
5V at 250mA from 6.5V to 34V Input (LT1934)
5V at 60mA from 6.5V to 34V Input (LT1934-1)
3.3V at 250mA from 4.5V to 34V Input (LT1934)
3.3V at 60mA from 4.5V to 34V Input (LT1934-1)
Low Shutdown Current: <1µA
Low V
CESAT
Switch: 200mV at 300mA
Low Profile (1mm) SOT-23 (ThinSOT
TM
) Package
APPLICATIO S
s
s
s
s
s
The LT
®
1934 is a micropower step-down DC/DC con-
verter with internal 400mA power switch, packaged in a
low profile (1mm) ThinSOT. With its wide input range of
3.2V to 34V, the LT1934 can regulate a wide variety of
power sources, from 4-cell alkaline batteries and 5V logic
rails to unregulated wall transformers and lead-acid bat-
teries. Quiescent current is just 12µA and a zero current
shutdown mode disconnects the load from the input
source, simplifying power management in battery-pow-
ered systems. Burst Mode
®
operation and the low drop
internal power switch result in high efficiency over a broad
range of load current.
The LT1934 provides up to 300mA of output current. The
LT1934-1 has a lower current limit, allowing optimum
choice of external components when the required output
current is less than 60mA. Fast current limiting protects
the LT1934 and external components against shorted
outputs, even at 34V input.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Wall Transformer Regulation
Automotive Battery Regulation
Standby Power for Portable Products
Distributed Supply Regulation
Industrial Control Supplies
TYPICAL APPLICATIO
3.3V Step-Down Converter
D2
100
LT1934
V
IN
= 12V
BOOST
V
IN
4.5V TO 34V
V
IN
LT1934
SHDN
GND
FB
SW
0.22µF
EFFICIENCY (%)
L1
47µH
90
C2
2.2µF
D1
10pF
1M
V
OUT
3.3V
250mA
80
V
OUT
= 3.3V
70
+
ON OFF
C1
100µF
604k
60
C1: SANYO 4TPB100M
C2: TAIYO YUDEN GMK325BJ225MN
D1: ON SEMICONDUCTOR MBR0540
D2: CENTRAL CMDSH-3
L1: SUMIDA CDRH4D28-470
1934 TA01
50
0.1
U
Efficiency
V
OUT
= 5V
1
10
100
LOAD CURRENT (mA)
1934 TA02
U
U
1934f
1

LT1934ES6 Related Products

LT1934ES6 LT1934IS6 LT1934-1 LT1934 LT1934IS6-1 LT1934ES6-1
Description 0.49 A SWITCHING REGULATOR, PDSO6 0.49 A SWITCHING REGULATOR, PDSO6 0.49 A SWITCHING REGULATOR, PDSO6 0.49 A SWITCHING REGULATOR, PDSO6 0.16 A SWITCHING REGULATOR, PDSO6 0.49 A SWITCHING REGULATOR, PDSO6
control mode CURRENT-MODE CURRENT-MODE PEAK current PEAK current CURRENT-MODE CURRENT-MODE
Number of functions 1 1 1 1 1 1
Number of terminals 6 6 6 6 6 6
Maximum operating temperature 85 °C 125 °C 125 Cel 125 Cel 125 °C 85 °C
Minimum operating temperature - -40 °C -40 Cel -40 Cel -40 °C -
Maximum output current 0.49 A 0.49 A 0.4900 A 0.4900 A 0.16 A 0.16 A
surface mount YES YES Yes Yes YES YES
Switch configuration BUCK BUCK BUCK BUCK BUCK BUCK
Temperature level OTHER AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE OTHER
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal location DUAL DUAL pair pair DUAL DUAL
Brand Name Linear Technology Linear Technology - - Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible - - incompatible incompatible
Parts packaging code SOT SOT - - SOT SOT
package instruction 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN VSSOP, TSOP6,.11,37 - - VSSOP, TSOP6,.11,37 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
Contacts 6 6 - - 6 6
Manufacturer packaging code S6 S6 - - S6 S6
Reach Compliance Code _compli _compli - - _compli _compli
ECCN code EAR99 EAR99 - - EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR - - SWITCHING REGULATOR SWITCHING REGULATOR
Maximum input voltage 34 V 34 V - - 34 V 34 V
Minimum input voltage 4 V 4 V - - 4 V 4 V
Nominal input voltage 10 V 10 V - - 10 V 10 V
JESD-30 code R-PDSO-G6 R-PDSO-G6 - - R-PDSO-G6 R-PDSO-G6
JESD-609 code e0 e0 - - e0 e0
length 2.9 mm 2.9 mm - - 2.9 mm 2.9 mm
Humidity sensitivity level 1 1 - - 1 1
Package body material PLASTIC/EPOXY PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code VSSOP VSSOP - - VSSOP VSSOP
Encapsulate equivalent code TSOP6,.11,37 TSOP6,.11,37 - - TSOP6,.11,37 TSOP6,.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) 235 235 - - 235 235
Certification status Not Qualified Not Qualified - - Not Qualified Not Qualified
Maximum seat height 1 mm 1 mm - - 1 mm 1 mm
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) - - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal pitch 0.95 mm 0.95 mm - - 0.95 mm 0.95 mm
Maximum time at peak reflow temperature 20 20 - - 20 20
width 1.625 mm 1.625 mm - - 1.625 mm 1.625 mm

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