GM66300TB5T GAMMA [Gamma Microelectronics Inc.], GM66300TB5T Datasheet

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GM66300TB5T

Manufacturer Part Number
GM66300TB5T
Description
3A ULTRA LOW-DROPOUT REGULATOR
Manufacturer
GAMMA [Gamma Microelectronics Inc.]
Datasheet
1.GM66300TB5T.pdf (11 pages)
Description
The GM66300 series is 3.0A low-dropout linear voltage reg-
ulators that provide a low-voltage, and high-current output
with a minimum of external components.
The GM66300 series offers extremely low dropout
(typically 400mV at 3.0A) and low ground current (typically
36mA at 3.0A).
The GM66300 series is ideal for PC add-in cards that need
to convert from standard 3.0V to 2.5V and 2.5V to 1.8,
down to new, lower core voltages. A guaranteed maximum
dropout voltage of 500mV over all operating conditions
allows the GM66300 series to provide 2.5V from a supply
as low as 3V or 1.8V . The GM66300 series also has fast
transient response, for heavy switching applications. The
device requires only 47µF of output capacitance to
maintain stability and achieve fast transient response.
The GM66300 series is fully protected with overcurrent
limiting, thermal shutdown, reversed-battery protection,
reversed-lead insertion protection, and reversed-leakage
protection.
The GM66301 series offers a TTL-logic-compatible enable
pin, and an error flag that indicates undervoltage and
overcurrent conditions. Offered in a fixed voltages, 1.8V
and 2.5V, the GM66300 series comes in the TO-220 and
TO-263 packages, and is an ideal upgrade to older, NPN-
based linear voltage regulators.
The GM66030 is adjustable version.
TYPICAL APPLICATION CIRCUITS
V
3.3V
IN
V
IN
GM66300 - 2.5
GND
V
ENABLE
SHUTDOWN
OUT
V
3.3V
IN
+
V
2.5V
47µF
OUT
10µF
V
V
EN
IN
GM66302
GND
ENABLE
SHUTDOWN
OUT
V
3.3V
Adj
IN
Features
Application
Strong ARM processor supply
LDO linear regulator for PC add-in cards
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Low-voltage microcontrollers
TO-220 and TO-263 packages
TTL/CMOS compatible enable pin (GM66301 only)
Error flag output (GM66301 only)
500mV dropout voltage
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V conversion
1% initial accuracy
Low ground current
Current limiting and Thermal shutdown
Reversed-battery protection
Reversed-leakage protection
Fast transient response
Adjustable version (GM66302 only)
3.0A minimum guaranteed output current
1.25V
V
V
EN
IN
GM66301 - 2.5
+
47µF
100kW
GND
TM
V
FLG
OUT
www.gammamicro.com
+
47µF
ERROR FLAG
OUTPUT
V
2.5V
OUT
1

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GM66300TB5T Summary of contents

Page 1

Description The GM66300 series is 3.0A low-dropout linear voltage reg- ulators that provide a low-voltage, and high-current output with a minimum of external components. The GM66300 series offers extremely low dropout (typically 400mV at 3.0A) and low ground current (typically ...

Page 2

MARKING INFORMATION & PIN CONFIGURATIONS 2 TO-263-2 (D PAK) GM66300 VVAYWW OUT GND TO-263-5(D PAK) GM66302 AYWW EN Adj OUT GND ORDERING INFORMATION Ordering Number GM66300 GM66300-1.8TA3T GM66300-1.8TA3R GM66300-1.8TB3T GM66300-2.5TA3T GM66300-2.5TA3R ...

Page 3

PIN DESCRIPTION PIN Number PIN Number PIN NUMBER GM66300 GM66301 GM66302 TAB 3, TAB 3, TAB ABSOLUTE MAXIMUM RATINGS (Note 1) Parameter Power Dissipation Supply Voltage Lead Temperature (Soldering, ...

Page 4

ELECTRICAL CHARACTERISTICS T = 25°C, bold values indicate -40°C J Parameter Output Voltage Line Regulation Load Regulation Output Voltage change with Temperature Coef. Note 5 Dropout Voltage Note 6 & 9 Ground Current Note 7 Dropout Ground Pin Current Current ...

Page 5

TYPICAL CHARACTERISTICS 600 400 350 500 V = 2.5V OUT 300 400 250 200 300 V = 1.8V OUT 150 200 100 100 -40 -20 0 1000 2000 3000 Output Current (mA) Figure 1. Dropout Voltage vs. ...

Page 6

APPLICATION INFORMATION The GM66300 series is a high performance with low- dropout voltage regulator, suitable for moderate to high-current voltage regulator applications. Its 500mV dropout voltage at full load makes it especially valuable in battery-powered systems and as a high-efficiency ...

Page 7

Input Capacitor An input capacitor of 1µF or greater is recommended when the device is more than 4 inches away from the bulk as supply capacitance, or when the supply is a battery. Small surfacemount ceramic chip capacitors can be ...

Page 8

TO-220 PACKAGE OUTLINE DIMENSIONS 3.60 ± 0.20 1.30 ± 0.10 1.70 1.50 DP0.20 1.46 1.00 1.27 ± 0.10 2.54 TYP (2.54 ± 0.20) 3° 10.00 ± 0.20 TO-220-5 PACKAGE OUTLINE DIMENSIONS 3.60 ± 0.20 1.30 ± 0.10 1.70 1.50 DP0.20 ...

Page 9

TO-263-2 PACKAGE OUTLINE DIMENSIONS 9.90 ± 0.20 15° 0.40 1.20 1.50 DP0.20 9.20 ± 0.20 15.3 ± 0.20 1.4 ± 0.20 4.90 ± 0.20 0.90 ± 0.10 1.27 ± 0.10 2.54 TYP (2.54 ± 0.20) 0.40 0.90 3° 3° R ...

Page 10

ORDERING NUMBER GM 66300/ 6630X 1.8 TA3 T Gamma Micro. Circuit Type Output Voltage 1.8: 1.8V 2.5: 2.5V Blank: Adj 10 Shipping R: Tape & Reel T: Tube Package TA3: TO-263-2 TA5: TO-263-5 TB3: TO-220-3 TB5: TO-220-5 ...

Page 11

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