LT3008ITS8-1.8#TRMPBF Linear Technology, LT3008ITS8-1.8#TRMPBF Datasheet

IC REG LDO 1.8V 20MA TSOT23-8

LT3008ITS8-1.8#TRMPBF

Manufacturer Part Number
LT3008ITS8-1.8#TRMPBF
Description
IC REG LDO 1.8V 20MA TSOT23-8
Manufacturer
Linear Technology
Datasheet

Specifications of LT3008ITS8-1.8#TRMPBF

Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
Up to 45V
Voltage - Dropout (typical)
0.3V @ 20mA
Number Of Regulators
1
Current - Output
20mA
Current - Limit (min)
22mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-8, TSOT-8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT3008ITS8-1.8#TRMPBFLT3008ITS8-1.8
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIONS
n
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
Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
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
ADJ
SHDN
LT3008-3.3
GND
= V
SENSE
OUT(MIN)
OUT
= 600mV)
2.2μF
3008 TA01a
V
3.3V
20mA
OUT
Low Dropout Linear Regulators
DESCRIPTION
The LT
(LDO) linear regulators. The devices supply 20mA output
current with a dropout voltage of 300mV. No-load quiescent
current 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 regulators optimize stability and transient
response with low ESR ceramic capacitors, requiring a
minimum of only 2.2μF. The regulators do 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 series are ideal for applications that require
moderate output drive capability coupled with ultralow
standby power consumption. The device is available in
fi xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and
5V, and an adjustable version with an output voltage range
of 0.6V to 44.5V. The LT3008 is available in the thermally
enhanced 6-lead DFN and 8-lead TSOT-23 packages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
®
3008 series are micropower, low dropout voltage
100
500
450
400
350
300
250
200
150
50
0
–50 –25
Dropout Voltage/Quiescent Current
I
LOAD
3µA I
= 20mA
0
TEMPERATURE (°C)
25
50
Q
I
LT3008 Series
Q
, 20mA, 45V
75
DROPOUT
VOLTAGE
100 125 150
3008 TA01b
6
5
4
2
1
0
3
3008fb
1

Related parts for LT3008ITS8-1.8#TRMPBF

LT3008ITS8-1.8#TRMPBF Summary of contents

Page 1

... The LT3008 is available in the thermally enhanced 6-lead DFN and 8-lead TSOT-23 packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Dropout Voltage/Quiescent Current ...

Page 2

LT3008 Series ABSOLUTE MAXIMUM RATINGS IN Pin Voltage .........................................................±50V OUT Pin Voltage ......................................................±50V Input-to-Output Differential Voltage ........................±50V ADJ Pin Voltage ......................................................±50V SENSE Pin Voltage ..................................................±50V SHDN Pin Voltage (Note 8) .....................................±50V Output Short-Circuit Duration .......................... Indefi nite PIN CONFIGURATION TOP ...

Page 3

... LT3008ITS8-1.8#PBF LT3008ITS8-1.8#TRPBF LT3008MPTS8-1.8#PBF LT3008MPTS8-1.8#TRPBF LT3008ETS8-2.5#PBF LT3008ETS8-2.5#TRPBF LT3008ITS8-2.5#PBF LT3008ITS8-2.5#TRPBF LT3008MPTS8-2.5#PBF LT3008MPTS8-2.5#TRPBF LT3008ETS8-3.3#PBF LT3008ETS8-3.3#TRPBF LT3008ITS8-3.3#PBF LT3008ITS8-3.3#TRPBF LT3008MPTS8-3.3#PBF LT3008MPTS8-3.3#TRPBF LT3008ETS8-5#PBF LT3008ETS8-5#TRPBF LT3008ITS8-5#PBF LT3008ITS8-5#TRPBF LT3008MPTS8-5#PBF LT3008MPTS8-5#TRPBF LEAD BASED FINISH TAPE AND REEL LT3008EDC LT3008EDC#TR LT3008IDC LT3008IDC#TR LT3008EDC-1.2 LT3008EDC-1.2#TR LT3008IDC-1.2 LT3008IDC-1.2#TR LT3008EDC-1.5 LT3008EDC-1.5#TR LT3008IDC-1.5 LT3008IDC-1.5#TR LT3008EDC-1.8 LT3008EDC-1 ...

Page 4

... LT3008MPTS8-1.8 LT3008MPTS8-1.8#TR LT3008ETS8-2.5 LT3008ETS8-2.5#TR LT3008ITS8-2.5 LT3008ITS8-2.5#TR LT3008MPTS8-2.5 LT3008MPTS8-2.5#TR LT3008ETS8-3.3 LT3008ETS8-3.3#TR LT3008ITS8-3.3 LT3008ITS8-3.3#TR LT3008MPTS8-3.3 LT3008MPTS8-3.3#TR LT3008ETS8-5 LT3008ETS8-5#TR LT3008ITS8-5 LT3008ITS8-5#TR LT3008MPTS8-5 LT3008MPTS8-5#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...

Page 5

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Load Regulation (Note 3) Dropout Voltage (Notes OUT(NOMINAL) Quiescent Current (Notes 6, 7) GND Pin Current 0.5V (Notes 6, ...

Page 6

LT3008 Series ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Current Limit Input Reverse-Leakage Current Reverse-Output Current Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage 450 400 T = 125°C J 350 300 T = 25°C J 250 200 150 100 OUTPUT CURRENT (mA) 3008 G01 ADJ Pin ...

Page 8

LT3008 Series TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage LT3008-5 5.100 I = 100μA LOAD 5.075 5.050 5.025 5.000 4.975 4.950 4.925 4.900 –50 – 100 125 150 TEMPERATURE (°C) 3008 G10 Quiescent Current 30 LT3008-1.2 27 LT3008-1.5 ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS GND Pin Current LT3008-5 500 450 400 R = 250Ω 20mA L L 350 300 250 200 R = 500Ω 10mA L L 150 R = 50k 100μA 100 L L ...

Page 10

LT3008 Series TYPICAL PERFORMANCE CHARACTERISTICS Load Regulation 1μA to 20mA L 4 600mV OUT 3.5 3 2.5 2 1.5 1 0.5 0 – 100 125 –25 ...

Page 11

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 12

LT3008 Series 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 shutdown. The device supplies up to 20mA of ...

Page 13

APPLICATIONS INFORMATION Because the ADJ pin is relatively high impedance (de- pending on the resistor divider used), stray capacitances at this pin should be minimized. Special attention should be given to any stray capacitances that can couple ex- ternal signals ...

Page 14

LT3008 Series APPLICATIONS INFORMATION piezoelectric response. A piezoelectric device generates voltage across its terminals due to mechanical stress, similar to the way a piezoelectric accelerometer or microphone works. For a ceramic capacitor, the stress can be induced by vibrations in ...

Page 15

APPLICATIONS INFORMATION Table 3: Measured Thermal Resistance for TSOT-23 Package COPPER AREA BOARD TOPSIDE* BACKSIDE AREA 2500mm 2500mm 2500mm 1000mm 2500mm 2500mm 225mm 2500mm 2500mm 100mm 2500mm 2500mm ...

Page 16

LT3008 Series APPLICATIONS INFORMATION The SHDN pin cannot be driven below GND unless tied to the IN pin. If the SHDN pin is driven below GND while IN is powered, the output will turn on. SHDN pin logic cannot be ...

Page 17

TYPICAL APPLICATIONS V IN 12V 1μF V LINE 12V TO 15V D CHARGE R LIMIT SUPERCAP 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. ...

Page 18

LT3008 Series PACKAGE DESCRIPTION 0.52 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE ...

Page 19

... Revised curve G04 in Typical Performance Characteristics 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. ...

Page 20

... 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 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...

Related keywords