GM6603-1.8TA3R GAMMA [Gamma Microelectronics Inc.], GM6603-1.8TA3R Datasheet

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GM6603-1.8TA3R

Manufacturer Part Number
GM6603-1.8TA3R
Description
3.0A LOW DROPOUT PRECISION REGULATOR
Manufacturer
GAMMA [Gamma Microelectronics Inc.]
Datasheet
Description
GM6603 series of positive adjustable and fixed
regulators is designed to provide 3A output current
with low dropout voltage performance.
On-chip trimming adjusts the reference voltage with
an accuracy of ±2%. Besides the features
mentioned, GM6603 works well in post regulators
or micro-processor power supplies where low
voltage operation and fast transient response are
required. GM6603 includes over current protection
and thermal shutdown protection as well.
GM6605 is available in TO-220 and surface-mount TO-
252 and TO-263 packages.
Notes:
1.
2.
Applications
Typical Application Circuit
V
IN
C
C
IN
OUT
> 4.75V
10µF
needed if device is far from filter capacitors
Microprocessor Supply
Post Regulators for Switching Supplies
Telecommunication Systems
C
Fixed Output Voltage Version
minimum value required for stability
IN
V
IN
3
GM6603-3.3
1
GND
2
V
OUT
V
3.0A
OUT
C
10µF
OUT
= 3.3V
V
IN
Features
10µF
> 4.75V
C
Adjustable Output Voltage Version
IN
Adjustable or Fixed Output
Output Current of 3.0A
Low Dropout, 1.15V max at 3A
Output Current
0.04% Line Regulation
0.2 % Load Regulation
Current Limit Protection
100% Thermal Limit Burn-In
Fast Transient Response
Printer Supplies
Motherboards
V
IN
3
PRECISION REGULATOR
GM6603-adj
3.0A LOW DROPOUT
1
ADJ
GM6603
2
V
OUT
R1
133
1%
R2
232
1%
V
3.0A
OUT
=3.45V
C
10µF
OUT
1

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GM6603-1.8TA3R Summary of contents

Page 1

... On-chip trimming adjusts the reference voltage with an accuracy of ±2%. Besides the features mentioned, GM6603 works well in post regulators or micro-processor power supplies where low voltage operation and fast transient response are required. GM6603 includes over current protection and thermal shutdown protection as well ...

Page 2

... Marking Information and Pin Configurations (Top View) TO 252 (D-PAK) GM6603 VVAYWW VV: Output Voltage Codes (05: 5.0V, …A: ADJ) A: Assembly/Test Site Code Y: Year WW: Week 2 GM6603 3.0A LOW DROPOUT PRECISION REGULATOR TO 263 TO 220 (D GM6603 VVAYWW GM6603 VVAYWW 2 -PAK) ...

Page 3

... Ordering Information Ordering Number V OUT GM6603-ATA3T GM6603-ATA3R GM6603-ATB3T Adj GM6603-ATC3T GM6603-ATC3R GM6603-1.8TA3T GM6603-1.8TA3R 1.8V GM6603-1.8TB3T GM6603-1.8TC3T GM6603-1.8TC3R GM6603-2.5TA3T GM6603-2.5TA3R GM6603-2.5TB3T 2.5V GM6603-2.5TC3T GM6603-2.5TC3R GM6603-3.3TA3T GM6603-3.3TA3R GM6603-3.3TB3T 3.3V GM6603-3.3TC3T GM6603-3.3TC3R GM6603-5 ...

Page 4

... Absolute Maximum Ratings PARAMETER Input Voltage Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature 1.6mm (1/6 inch) from case for 10 seconds Block Diagram ADJ 4 For fixed output Options GND GM6603 3.0A LOW DROPOUT PRECISION REGULATOR SYMBOL RATINGS UNITS Internally Limited ...

Page 5

... GM6603-3.3 GM6603-5.0 GM6603-A GM6603-1.8 Load ∆V OL GM6603-2.5 Regulation GM6603-3.3 GM6603-5.0 Dropout Voltage V D Current Limit I CL Minimum Load Current I O(MIN) GM6603-1.8 GM6603-2.5 Quiescent I Q Current GM6603-3.3 GM6603-5.0 Adjust Pin GM6603-A I ADJ Current Temperature Coefficient Ripple Rejection R A 3.0A LOW DROPOUT PRECISION REGULATOR (T ...

Page 6

... A detailed procedure for selecting this capacitor is as below: Stability Considerations The circuit design used in the GM6603 series requires the use of an output capacitor as part of the device frequency compensation. The addition of 150µF aluminum electrolytic or a 22µF solid tantalum on the output will ensure stability for all operating conditions. ...

Page 7

... The value for θ is calculated using equation (3) and the result can be substituted in equation (1). The JA value for θ is 3.5°C/W for a given package typed based CS regulator such as GM6603, the majority of the heat is generated in the power transistor sect1on. 3.0A LOW DROPOUT PRECISION REGULATOR V V OUT ...

Page 8

... Figure 3. Ripple Rejection vs. Frequency 8 +0.3 +0 0°C CASE +0.1 -0 125°C CASE -0.2 -0.3 1.50 1.80 2.10 2.40 2.70 3.00 0.65 0.60 0.55 0.50 0.45 0. GM6603 3.0A LOW DROPOUT PRECISION REGULATOR 120 T (°C) J Figure 2. Bandgap Reference Voltage Deviation Vs. Temperature T = 0°C CASE T = 25°C CASE T = 125°C CASE ...

Page 9

... PRECISION REGULATOR 0.105 - 0.180 (4.191 - 4.572) 0.045 - 0.055 (1.143 - 1.397) 15 TYP 0.059 (1.499) TYP 0.050 +/- 0.012 (1.270 +/- 0.305) 0.020 - 0.039 (0.510 - 0.990) 0.013 - 0.023 (0.330 - 0.584) 0.050 (1.270) 4.50 ± 0.20 2.80 ± 0.10 +0.1 1.30 -0.05 ± 0.20 3° 7.0 3° 3° 3-R0.2 +0.1 0.50 -0.05 2.40 ± 0. 0.3 GM6603 3.0A LOW DROPOUT 8.0 7.0 0.9 Unit ...

Page 10

... TYP 0.030 – 0.045 (0.760 – 1.140) 0.180 (4.570) TYP GM6603 3.0A LOW DROPOUT PRECISION REGULATOR 0.039 – 0.050 (1.020 – 1.270) 0.018 – 0.023 (0.460 – 0.580) SEATING PLAN 0.020 (0.510) MIN 0.018 – ...

Page 11

... GM6603 3.0A LOW DROPOUT Tube R: Tape & Reel 11 ...

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