LT1963EQ#PBF Linear Technology, LT1963EQ#PBF Datasheet

IC REG LDO ADJ-VOLT 1.5A 5-DD

LT1963EQ#PBF

Manufacturer Part Number
LT1963EQ#PBF
Description
IC REG LDO ADJ-VOLT 1.5A 5-DD
Manufacturer
Linear Technology
Datasheet

Specifications of LT1963EQ#PBF

Regulator Topology
Positive Adjustable
Voltage - Output
1.21 ~ 20 V
Voltage - Input
2.1 ~ 20 V
Voltage - Dropout (typical)
0.34V @ 1.5A
Number Of Regulators
1
Current - Output
1.5A
Current - Limit (min)
1.6A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-5, D²Pak (5 leads + Tab), TO-263BA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1963EQ#PBFLT1963EQ
Manufacturer:
qtc
Quantity:
1 000
Company:
Part Number:
LT1963EQ#PBFLT1963EQ
Manufacturer:
LT
Quantity:
1 740
Company:
Part Number:
LT1963EQ#PBFLT1963EQ
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LT1963EQ#PBF
Manufacturer:
LINEAR
Quantity:
40
Company:
Part Number:
LT1963EQ#PBF
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
TYPICAL
APPLICATIO S
Optimized for Fast Transient Response
Output Current: 1.5A
Dropout Voltage: 340mV
Low Noise: 40
1mA Quiescent Current
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
Adjustable Output from 1.21V to 20V
< 1µA Quiescent Current in Shutdown
Stable with 10µF Output Capacitor
Reverse Battery Protection
No Reverse Current
Thermal Limiting
5-Lead TO-220, DD, 3-Lead SOT-223, 8-Lead SO
and 16-Lead TSSOP Packages
3.3V to 2.5V Logic Power Supplies
Post Regulator for Switching Supplies
V
IN
> 3V
APPLICATION
+
µ
10µF
V
U
RMS
3.3V to 2.5V Regulator
(10Hz to 100kHz)
IN
SHDN
LT1963-2.5
GND
SENSE
U
OUT
+
10µF
1963 TA01
2.5V
1.5A
DESCRIPTIO
The LT
for fast transient response. The devices are capable of
supplying 1.5A of output current with a dropout voltage of
340mV. Operating quiescent current is 1mA, dropping to
< 1µA in shutdown. Quiescent current is well controlled; it
does not rise in dropout as it does with many other
regulators. In addition to fast transient response, the
LT1963 regulators have very low output noise which
makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21V to 20V. The LT1963
regulators are stable with output capacitors as low as
10µF. Internal protection circuitry includes reverse battery
protection, current limiting, thermal limiting and reverse
current protection. The devices are available in fixed
output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an
adjustable device with a 1.21V reference voltage. The
LT1963 regulators are available in 5-lead TO-220, DD,
3-lead SOT-223, 8-lead SO, and Exposed Pad 16-lead
TSSOP packages.
All other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 6118263, 6144250.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Fast Transient Response
®
1963 series are low dropout regulators optimized
400
350
300
250
200
150
100
50
0
0
0.2
U
0.4
OUTPUT CURRENT (A)
Dropout Voltage
1.5A, Low Noise,
LDO Regulators
0.6
0.8
1.0
LT1963 Series
1.2
1.4
1963 TA02
1.6
1963fc
1

Related parts for LT1963EQ#PBF

LT1963EQ#PBF Summary of contents

Page 1

... The LT1963 regulators are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO, and Exposed Pad 16-lead TSSOP packages. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6118263, 6144250. 400 ...

Page 2

LT1963 Series ABSOLUTE AXI U RATI GS IN Pin Voltage ........................................................ ±20V OUT Pin Voltage .................................................... ±20V Input to Output Differential Voltage (Note 2) ......... ±20V SENSE Pin Voltage ............................................... ±20V ADJ Pin Voltage ...................................................... ±7V U ...

Page 3

ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T PARAMETER CONDITIONS Minimum Input Voltage (Notes 4,12) I LOAD I LOAD Regulated Output Voltage (Note 5) LT1963-1.5 LT1963-1.8 LT1963-2.5 LT1963-3.3 ADJ Pin ...

Page 4

LT1963 Series ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T PARAMETER CONDITIONS Current Limit Input Reverse Leakage Current (Note 13 Packages V ST ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Typical Dropout Voltage 500 450 400 350 T = 125°C J 300 250 T = 25°C 200 J 150 100 0.8 1.2 1.4 0.2 0.4 0.6 1.0 1.6 OUTPUT CURRENT ...

Page 6

LT1963 Series W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963-1.5 Quiescent Current 25° ∞ SHDN ...

Page 7

W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963 GND Pin Current 25° SHDN IN *FOR V = 1.21V 8 OUT R = 4.33 300mA 12.1, ...

Page 8

LT1963 Series W U TYPICAL PERFOR A CE CHARACTERISTICS SHDN Pin Input Current 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 SHDN PIN VOLTAGE (V) 1963 ...

Page 9

W U TYPICAL PERFOR A CE CHARACTERISTICS LT1963 Minimum Input Voltage 3 500mA L 2 100mA L 1.5 1.0 0.5 0 – 100 125 –25 0 TEMPERATURE (°C) ...

Page 10

LT1963 Series CTIO S OUT: Output. The output supplies power to the load. A minimum output capacitor of 10µF is required to prevent oscillations. Larger output capacitors will be required for applications with large transient ...

Page 11

U U APPLICATIO S I FOR ATIO The LT1963 series are 1.5A low dropout regulators opti- mized for fast transient response. The devices are capable of supplying 1. dropout voltage of 350mV. The low operating quiescent current (1mA) ...

Page 12

LT1963 Series U U APPLICATIO S I FOR ATIO 20 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10µF 0 X5R –20 –40 –60 Y5V –80 –100 BIAS VOLTAGE (V) Figure 3. Ceramic ...

Page 13

U U APPLICATIO S I FOR ATIO Thermal Considerations The power handling capability of the device is limited by the maximum rated junction temperature (125°C). The power dissipated by the device is made up of two components: 1. Output current ...

Page 14

LT1963 Series U U APPLICATIO S I FOR ATIO Using a DD package, the thermal resistance will be in the range of 23°C/W to 33°C/W depending on the copper area. So the junction temperature rise above ambient will be approximately ...

Page 15

U TYPICAL APPLICATIO S SCR Pre-Regulator Provides Efficiency Over Line Variations L2 10VAC AT 115V IN 90-140 VAC 10VAC AT 115V IN 1N4002 1N4002 “SYNC” 1N4002 2.4k TO ALL “+V” + POINTS 22µF 750Ω V > 3. 500µH ...

Page 16

LT1963 Series PACKAGE DESCRIPTIO .060 .256 (1.524) (6.502) .060 .183 (1.524) (4.648) .075 (1.905) .300 (7.620) BOTTOM VIEW OF DD PAK HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK .067 RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN INCH/(MILLIMETER) 2. ...

Page 17

PACKAGE DESCRIPTIO .050 BSC .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS ...

Page 18

LT1963 Series PACKAGE DESCRIPTIO .264 – .287 (6.70 – 7.30) .130 – .146 (3.30 – 3.71) .0905 (2.30) BSC .071 (1.80) MAX 0.390 – 0.415 (9.906 – 10.541) 0.230 – 0.270 (5.842 – 6.858) 0.460 – 0.500 (11.684 – 12.700) ...

Page 19

... DIMENSIONS ARE IN 3. DRAWING NOT TO SCALE 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 Package 16-Lead Plastic TSSOP (4 ...

Page 20

... MS8 Package 1.21V 0.34V 1mA, I <1µ –1.21V 0.34V 30µ 3µ 0.20 0.15V 120µA, I <3µ 1.22V 0.30V 40µA, I <1µ 1.22V 0.30V 60µA, I <1µ 1.23V 0.13V 12mA 25µ 1105 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2005 1963fc ...

Related keywords