LT1615ES5-1#TRPBF Linear Technology, LT1615ES5-1#TRPBF Datasheet

IC DC/DC CONV STEP-UP TSOT-23-5

LT1615ES5-1#TRPBF

Manufacturer Part Number
LT1615ES5-1#TRPBF
Description
IC DC/DC CONV STEP-UP TSOT-23-5
Manufacturer
Linear Technology
Type
Step-Up (Boost)r
Datasheet

Specifications of LT1615ES5-1#TRPBF

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.23 ~ 36 V
Current - Output
100mA
Voltage - Input
1 ~ 15 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-5, TSOT-5, TSOP-5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Frequency - Switching
-

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APPLICATIO S
FEATURES
TYPICAL APPLICATIO
2.5V TO 4.2V
LCD Bias
Handheld Computers
Battery Backup
Digital Cameras
Low Quiescent Current:
Operates with V
Low V
Uses Small Surface Mount Components
High Output Voltage: Up to 34V
Low Profile (1mm) ThinSOT
20 A in Active Mode
<1 A in Shutdown Mode
V
IN
CESAT
1-Cell Li-Ion to 20V Converter for LCD Bias
C1: TAIYO YUDEN LMK316BJ475
C2: TAIYO YUDEN TMK316BJ105
D1: MOTOROLA MBR0530
L1: MURATA LQH3C100K24
Switch: 250mV at 300mA
C1
4.7 F
IN
U
as Low as 1V
SHDN
V
IN
LT1615
10 H
GND
L1
TM
SW
FB
Package
U
D1
R1
2M
R2
130k
1615/-1 TA01
C2
1 F
20V
12mA
DESCRIPTIO
The LT
converters in a 5-lead low profile (1mm) ThinSOT pack-
age. The LT1615 is designed for higher power systems
with a 350mA current limit and an input voltage range of
1.2V to 15V, whereas the LT1615-1 is intended for lower
power and single-cell applications with a 100mA current
limit and an extended input voltage range of 1V to 15V.
Otherwise, the two devices are functionally equivalent.
Both devices feature a quiescent current of only 20 A at no
load, which further reduces to 0.5 A in shutdown. A
current limited, fixed off-time control scheme conserves
operating current, resulting in high efficiency over a broad
range of load current. The 36V switch allows high voltage
outputs up to 34V to be easily generated in a simple boost
topology without the use of costly transformers. The
LT1615’s low off-time of 400ns permits the use of tiny, low
profile inductors and capacitors to minimize footprint and
cost in space-conscious portable applications.
ThinSOT is a trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1615/LT1615-1 are micropower step-up DC/DC
85
80
75
70
65
60
55
50
Micropower Step-Up
0.1
DC/DC Converters
V
IN
0.3
= 4.2V
U
LOAD CURRENT (mA)
LT1615/LT1615-1
Efficiency
V
IN
1
= 2.5V
3
in ThinSOT
V
IN
10
1615/-1 TA01a
= 3.3V
30
sn16151 16151fas
1

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LT1615ES5-1#TRPBF Summary of contents

Page 1

... The LT1615’s low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. D1 20V ...

Page 2

... The LT1615I/LT1615I-1 is guaranteed to meet performance specifications over the – operating temperature range. Note 3: Bias current flows into the FB pin ORDER PART NUMBER LT1615ES5 TOP VIEW LT1615ES5 LT1615IS5 LT1615IS5-1 4 SHDN S5 PACKAGE S5 PART MARKING LTIZ = 125 C, ...

Page 3

W U TYPICAL PERFOR A CE CHARACTERISTICS Switch Saturation Voltage (V ) CESAT 0.60 0.55 0.50 0. 500mA SWITCH 0.40 0.35 0. 300mA SWITCH 0.25 0.20 0.15 0.10 –50 – TEMPERATURE ( ...

Page 4

LT1615/LT1615-1 W BLOCK DIAGRA OUT R1 (EXTERNAL (EXTERNAL) * 12mV FOR LT1615-1 U OPERATIO The LT1615 uses a constant off-time control scheme to provide high efficiencies over a wide range of output current. ...

Page 5

U U APPLICATIO S I FOR ATIO Choosing an Inductor Several recommended inductors that work well with the LT1615 and LT1615-1 are listed in Table 1, although there are many other manufacturers and devices that can be used. Consult each ...

Page 6

LT1615/LT1615 APPLICATIO S I FOR ATIO input voltages greater than 5V), the current limit over- shoot can be quite high. Although it is internally current limited to 350mA, the power switch of the LT1615 can handle larger currents ...

Page 7

... D1: MOTOROLA MBR0540 (800) 441-2447 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 3.3V 60mA 4 ...

Page 8

... Inverting Switching Regulator in 5-Lead ThinSOT LT1613 1.4MHz Switching Regulator in 5-Lead ThinSOT LT1617 Micropower Inverting DC/DC Converter in 5-Lead ThinSOT Burst Mode is a trademark of Linear Technology Corporation Linear Technology Corporation 8 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear-tech.com 20V Dual Output Converter with Output Disconnect ...

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