lt3008ets8-trpbf Linear Technology Corporation, lt3008ets8-trpbf Datasheet

no-image

lt3008ets8-trpbf

Manufacturer Part Number
lt3008ets8-trpbf
Description
3?a Iq, 20ma, 45v Low Dropout Linear Regulato
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATION
3.8V TO
Ultralow Quiescent Current: 3μA
Input Voltage Range: 2.0V to 45V
Output Current: 20mA
Dropout Voltage: 300mV
Adjustable Output (V
Output Tolerance: ±2% Over Load, Line and
Temperature
Stable with Low ESR, Ceramic Output Capacitors
(2.2μF minimum)
Shutdown Current: <1μA
Current Limit Protection
Reverse-Battery Protection
Thermal Limit Protection
TSOT-23 and 2mm × 2mm DFN Packages
Automotive
Low Current Battery-Powered Systems
Keep-Alive Power Supplies
Remote Monitoring
Utility Meters
Low Power Industrial Applications
45V
V
IN
3.3V, 20mA Supply with Shutdown
1μF
IN
SHDN
ADJ
LT3008
GND
= V
OUT
ADJ
OUT(MIN)
2.8M
1%
619k
1%
= 600mV)
2.2μF
3008 TA01a
V
3.3V
20mA
OUT
Low Dropout Linear Regulator
DESCRIPTION
The LT
linear regulator. The device supplies 20mA output current
with a dropout voltage of 300mV. No-load quiescent cur-
rent is 3μA. Ground pin current remains at less than 5% of
output current as load increases. In shutdown, quiescent
current is less than 1μA.
The LT3008 regulator optimizes stability and transient
response with low ESR ceramic capacitors, requiring a
minimum of only 2.2μF . The LT3008 does not require
the addition of ESR as is common with other regulators.
Internal protection circuitry includes current limiting,
thermal limiting, reverse-battery protection and reverse-
current protection.
The LT3008 is ideal for applications that require moderate
output drive capability coupled with ultralow standby power
consumption. The device is available as an adjustable
device with an output voltage range down to the 600mV
reference. The LT3008 is available in the 6-lead DFN and
8-lead TSOT-23 packages.
All other trademarks are the property of their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
®
3008 is a micropower, low dropout voltage (LDO)
100
500
450
400
350
300
250
200
150
50
0
–50 –25
Dropout Voltage/Quiescent Current
I
LOAD
= 20mA
3µA I
0
TEMPERATURE (°C)
25
50
Q
I
Q
75
, 20mA, 45V
DROPOUT
VOLTAGE
100 125 150
3008 TA01b
LT3008
6
5
4
2
1
0
3
1
3008f

Related parts for lt3008ets8-trpbf

lt3008ets8-trpbf Summary of contents

Page 1

... The device is available as an adjustable device with an output voltage range down to the 600mV reference. The LT3008 is available in the 6-lead DFN and 8-lead TSOT-23 packages. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 500 450 ...

Page 2

... LT3008EDC LT3008EDC#TR LT3008IDC LT3008IDC#TR LT3008ETS8 LT3008ETS8#TR LT3008ITS8 LT3008ITS8#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Operating Voltage ADJ Pin Voltage (Notes 3, 4) Line Regulation (Note 3) Load Regulation (Note 3) Dropout Voltage (Notes OUT(NOMINAL) Quiescent Current (Notes ...

Page 4

LT3008 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T Note 6: To satisfy minimum input voltage requirements, the LT3008 adjustable version is tested and specifi ed for these conditions with an external resistor divider (61.9k bottom, 280k top) ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Quiescent Current 3.3V OUT 1μA LOAD INPUT VOLTAGE (V) 3008 G07 SHDN Pin Thresholds 1.5 1.4 ...

Page 6

LT3008 TYPICAL PERFORMANCE CHARACTERISTICS Input Ripple Rejection (NOMINAL 0.5V IN OUT P-P 10 RIPPLE 120Hz I = 20mA LOAD 0 – ...

Page 7

PIN FUNCTIONS (TSOT-23/DFN) SHDN (Pin 1/Pin 5): Shutdown. Pulling the SHDN pin low puts the LT3008 into a low power state and turns the output off. If unused, tie the SHDN pin to V does not function if the SHDN ...

Page 8

LT3008 APPLICATIONS INFORMATION The LT3008 is a low dropout linear regulator with ultra- low quiescent current and shutdown. Quiescent current is extremely low at 3μA and drops well below 1μA in shut- down. The device supplies up to 20mA of ...

Page 9

APPLICATIONS INFORMATION Extra care should be taken in assembly when using high valued resistors. Small amounts of board contamination can lead to signifi cant shifts in output voltage. Appropriate post-assembly board cleaning measures should be implemented to prevent board contamination. ...

Page 10

LT3008 APPLICATIONS INFORMATION Voltage and temperature coeffi cients are not the only sources of problems. Some ceramic capacitors have a piezoelectric response. A piezoelectric device generates voltage across its terminals due to mechanical stress, similar to the way a piezoelectric ...

Page 11

APPLICATIONS INFORMATION The following tables list thermal resistance for several different board sizes and copper areas. All measurements were taken in still air on 3/32" FR-4 two-layer boards with one ounce copper. PCB layers, copper weight, board layout and thermal ...

Page 12

LT3008 APPLICATIONS INFORMATION Protection Features The LT3008 incorporates several protection features that make it ideal for use in battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such as current limiting and thermal limiting, the device ...

Page 13

TYPICAL APPLICATIONS V IN 12V 1μF V LINE 12V TO 15V D CHARGE R LIMIT SUPERCAP Keep-Alive Power Supply NO PROTECTION DIODES NEEDED! 3.3V IN OUT 2.8M 2.2μF LT3008 1% SHDN ADJ 619k VOLATILE MEMORY, ETC. GND 1% Last-Gasp Circuit ...

Page 14

LT3008 PACKAGE DESCRIPTION 2.50 0.05 0.61 0.05 1.15 0.05 (2 SIDES) 0.50 BSC 1.42 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WCCD-2) 2. DRAWING NOT ...

Page 15

... JEDEC PACKAGE REFERENCE IS MO-193 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. TS8 Package 8-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1639 Rev Ø ...

Page 16

... Low Voltage VLDO LT3080/ LT3080-1 1.1A, Parallelable, Low Noise, Low Dropout Linear Regulator LT3085 500mA, Parallelable, Low Noise, Low Dropout Linear Regulator ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...

Related keywords