GM7130-12B5BT [GAMMA]
3A STEP DOWN VOLTAGE SWITCHING REGULATORS; 3A降压电压开关调节器
| 型号： | GM7130-12B5BT |
| 厂家： | 
GAMMA MICROELECTRONICS INC. |
| 描述： | 3A STEP DOWN VOLTAGE SWITCHING REGULATORS |
| 文件： | 总9页 (文件大小：140K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Description
Features
GM7130 series is designed to provide all the
active function for a step-down (buck) switching
regulator, and drives a maximum load current as
high as 3A line and load regulations. GM7130 is
available in fixed output voltages of 3.3V, 5V,
12V and a versatile Adjustable output version.
3.3V, 5V, 12V and Adjustable output
versions
Adjustable version output voltage range
1.23V to 37V
V
OUT accuracy is up to ±2% under
specified input voltage the output load
conditions
These regulators are simple to use and require
minimum number of external components. The
features include internal frequency compensation
and a fixed-frequency oscillator.
Input voltage range up to 40V
Requires only 4 external components with
High efficiency
The GM7130 is high-efficiency replacements for
popular three-terminal linear regulators, and is
requiring a smaller heat sink or even no need
heat sink.
TTL shutdown capability, low power
standby mode
Built-in thermal shutdown, current limit
protection
GM7130 performs well with standard inductors
from most of manufacturers, and simplifying the
design of switch-mode power supplies. External
shutdownis included with 80µA (typical) standby
current. The output switch has cycle-by-cycle
current limiting as well as thermal shutdown for
full protection under fault conditions.
Uses standard inductors
52 kHz fixed frequency internal oscillator
GM7130 operates at a switching frequency of
52 kHz which allowing smaller size filter
components than what would be needed with
lower frequency switching regulators.
GM7130 series are available in a standard 5-lead
TO-220, TO220B and TO263 packages.
Application
Pre-regulator for linear regulators
On-card/board switching regulators
High-efficiency step-down buck regulator
Positive to negative converter (buck-boost)
Typical Application Circuits
GM7130-5.0
7V – 40V
4
Feedback
Unregulated
DC Input
5V
1
VIN
L1
regulated
100µH
output,
Output
5
GND
3
ON/OFF
5
CIN
100µF
COUT
680µF
D1
1N5822
www.gammamicro.com.tw
2
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Marking Information and Pin Configurations (Top View)
TO-220-5
TO-220B-5
TO-263-5
GM7130
VVAYWW
GM7130
VVAYWW
GM7130
VVAYWW
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
3
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Ordering Information
Ordering Number
GM7130-ATA5T
GM7130-ATA5R
GM7130-ATB5T
GM7130-ATB5BT
GM7130-3.3TA5T
GM7130-3.3A5R
GM7130-3.3B5T
GM7130-3.3B5BT
GM7130-5.0TA5T
GM7130-5.0A5R
GM7130-5.0B5T
GM7130-12B5BT
GM7130-12TA5T
GM7130-12A5R
GM7130-12B5T
GM7130-12B5BT
Output Voltage
Package
TO-263-5
TO-263-5
TO-220-5
TO-220-5B
TO-263-5
TO-263-5
TO-220-5
TO-220-5B
TO-263-5
TO-263-5
TO-220-5
TO-220-5B
TO-263-5
TO-263-5
TO-220-5
TO-220-5B
Shipping
50 Units / Tube
800 Units / Reel
50 Units / Tube
50 Units / Tube
50 Units / Tube
800 Units / Reel
50 Units / Tube
50 Units / Tube
50 Units / Tube
800 Units / Reel
50 Units / Tube
50 Units / Tube
50 Units / Tube
800 Units / Reel
50 Units / Tube
50 Units / Tube
Adj
3.3
5.0
12
4
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Absolute Maximum Ratings (Note 1)
Rating
Value
Unit
V
Maximum Supply Voltage
45
-0.3 + VIN + 0.3
V
ON/OFF
Pin Input Voltage
Feedback Pin Voltage
-0.3 + VIN + 0.3
V
Output Voltage to Ground (Steady State)
Power Dissipation
-1.0
V
Internally Limited
-
TO-220-5
65
Junction to Ambient,
θJA
TO-263-5
TO-220-5
TO-263-5
45
Thermal
°C/W
Resistance*
2
2
Junction to Case,
θJC
Storage Temperature Range
- 65 to 150
+ 150
- 40 to 125
2
°C
°C
°C
kV
°C
Maximum Junction Temperature
Operating Temperature Range
Minimum ESD Rating (Note 2)
Lead Temperature (Soldering, 10 sec)
+ 260
* θJA is measured with minimum copper area for TO-220-5 package, and copper area (must connected to ground) of around 0.5 in2
for TO-263-5 package.
Block Diagram
FB
5
VIN
1
R2*
R1*
Regulator
With
Error
4
Amplifier
ON/OFF
Comparator
Reset
Driver
1.23V
Reference
3
Gnd
2
Thermal Shutdown
&
52KHz
VOUT
Current Limit
VOUT = 3.3V, R1 = 2.49K, R2 = 4.18K
VOUT = 5.0V, R1 = 2.49K, R2 = 7.57K
VOUT = ADJ, R1 = OPEN, R2 = 0Ω
5
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Electrical Characteristics: GM7130-ADJ
(Specifications with standard type face are for TJ = 25℃, and those with bold face type apply over full Operating Temperature
rage)
Parameter
Condition
Symbol
VOUT
η
Min
1.217
1.193
1.180
Typ
1.230
77
Max
1.243
1.267
1.280
Unit
V
VIN = 12V, ILOAD = 0.5A, VOUT = 5V
Feedback
Voltage
8.0V < VIN < 40V, 0.5A < ILOAD < 3A,
VOUT = 5V
Efficiency
VIN =12V, ILOAD=3.0A, VOUT = 5V
%
Electrical Characteristics: GM7130-3.3
(Specifications with standard type face are for T = 25℃, and those with bold face type apply over full Operating Temperature
rage)
Parameter
Output Voltage
Efficiency
Condition
Symbol
VOUT
η
Min
3.234
3.168
3.135
Typ
3.300
75
Max
3.366
3.432
3.465
Unit
V
VIN = 12V, ILOAD = 0.5A
6V < VIN < 40V, 0.5A < ILOAD < 3A
VIN =12V, ILOAD=3.0A
%
Electrical Characteristics: GM7130-5.0
(Specifications with standard type face are for T = 25℃, and those with bold face type apply over full Operating Temperature
rage)
Parameter
Output Voltage
Efficiency
Condition
Symbol
VOUT
η
Min
4.900
4.800
4.750
Typ
5.000
77
Max
5.100
5.200
5.250
Unit
V
VIN = 12V, ILOAD = 0.5A
8V < VIN < 40V, 0.5A < ILOAD < 3A
VIN =12V, ILOAD=3.0A
%
Electrical Characteristics: GM7130-12
(Specifications with standard type face are for T = 25℃, and those with bold face type apply over full Operating Temperature
rage)
Parameter
Output Voltage
Efficiency
Condition
Symbol
VOUT
η
Min
11.76
11.52
11.40
Typ
12.00
88
Max
12.24
12.48
12.60
Unit
V
VIN = 25V, ILOAD = 0.5A
15V < VIN < 40V, 0.5A < ILOAD < 3A
VIN =15V, ILOAD=3.0A
%
6
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Electrical Characteristics: All Output Voltage Versions
(Specifications with standard type face are for TJ = 25℃, and those with bold face type apply over full Operating Temperature
rage. Unless otherwise specified, VIN = 12V for 3.3V, 5.0V and Adj version, VIN = 25V for 12V version, ILOAD = 500mA)
Parameter
Condition
Symbol
Min
Typ
Max
Unit
100
500
58
Feedback Bias
Current
VOUT =5V (Adjustable Version Only)
Ib
fo
-
50
nA
47
Oscillator
(Note 3)
52
kHz
Frequency
42
63
1.8
Saturation
Voltage
lOUT = 3A (Notes 4, 5)
(Note 5)
VSAT
DC
lCL
-
1.4
98
V
%
A
2.0
Max Duty Cycle
(ON)
93
-
4.2
6.9
7.5
2
Current Limit
Peak Current (Notes 4, 5)
5.8
3.5
Output =0V (Notes 4, 6)
Output = -1V (Notes 4, 6)
Output Leakage
Current
lL
lQ
7.5
5
mA
mA
µA
-
-
30
Quiescent
Current
Standby
Quiescent
Current
(Note 6)
10
= 5V (OFF)
ON/OFF
lSTBY
-
-
50
200
1.0
Low (ON)
VIH
VIL
1.2
1.4
ON/OFF
Pin Logic lnput
Level
0.8
V
2.2
High (OFF)
-
2.4
VLOGlC = 2.5V (OFF)
VLOGlC = 0.5V (ON)
IH
IL
12
0
30
10
µA
ON/OFF Pin
Input Current
Note 1: Stresses greater than those listed under Maximum Ratings may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
Note 2: The human body model is a 100pF capacitor discharge through a 1.5KΩ resistor into each pin.
Note 3: External components such as the catch diode, inductor, input and output capacitors, and voltage
programming resistors can affect switching regulator system performance. Where the GM2576
is used as shown in Figure 1&2 test circuits.
Note 4: No diode, inductor or capacitor connected to output pin.
Note 5: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
Note 6: Feedback pin removed from output and connected to 12V for the 3.V, 5V and Adj version, to
force the output transistor switch OFF.
7
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Test Circuit and Layout Guidelines
Careful layout is important with any switching regulators. Rapidly switching currents associated with
wiring inductance generate voltage transients which can cause problems. To minimize inductance
and ground loops, the lengths of the leads indicated by heavy lines in Figure 1&2 below should be
kept as short as possible. Single point grounding (as indicated or ground plane construction should
be used for best results. When using the Adjustable version, place the programming resistors as
close as possible to GM2576, to keep the sensitive feedback wiring short.
4
Feedback
1
L1
GM7130-x.x
100µH
VIN
VOUT
2
D1
Output
3
5
CIN
100µF
L
COUT
GND
VIN
ON/OFF
O
A
D
680µF
Unregulatedd
DC Input
Figure 1 Fixed Ouput Votlage Versions
CIN = 100µF, Aluminum Electrolytic
C
OUT = 680µF, 25V, Aluminum Electrolytic
D1 = Schottky
L1 = 100µH
4
FB
L1
1
GM7130-ADJ
100µH
VOUT
VIN
2
VOUT
R2
3
5
L
VIN
CIN
100µF
GND
ON/OFF
O
A
D
D1
Unregulatedd
DC Input
COUT
R1
680µF
Figure 2 Adjustable Ouput Votlage Versions
CIN = 100µF, Aluminum Electrolytic
COUT = 680µF, 25V, Aluminum Electrolytic
D1 = Schottky
L1 = 100µH
VOUT = VREF (1 + R2/R1)
where VREF = 1.23V and R1 is between 1K to 5K
8
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Package Outline Dimensions – TO-263-5
0.176 - 0.184
(4.47 - 4.67)
0.389 - 0.408
(9.88 - 10.18)
0.046 - 0.054
(1.17 - 1.37)
0.061 - 0.069
(1.56 - 1.76)
0.322 - 0.339
(8.20 - 8.60)
0.596 - 0.612
(15.14 - 15.54)
0.028 - 0.036
(0.71 - 0.91)
3
7
0.200 - 0.216
(5.08 - 5.48)
0.092 - 0.108
(2.34 - 2.74)
o
o
0 - 8
0.012 - 0.021
(0.31 - 0.53)
0.224 - 0.272
(5.70 - 6.90)
0.067
typ
(1.70)
Package Outline Dimensions – TO-220-5
0.048 - 0.052
(1.22 - 1.32)
0.400 + 0.015
0.400 - 0.005
0.175 - 0.185
(4.45 - 4.75)
(0.38 + 0.18)
(0.38 - 0.03)
0.100 - 0.120
(2.54 - 3.05)
0.240 - 0.260
(6.10 - 6.60)
0.149 - 0.153
(3.78 - 3.89)
0.330 - 0.350
(8.38 - 8.89)
0.525 - 0.555
(13.34 - 14.10)
0.525 - 0.555
(13.34 - 14.10)
0.030 - 0.040
(0.76 - 1.02)
0.057 - 0.077
(1.45 - 1.96)
0.105 + 0.010
0.105 - 0.010
0.015 + 0.007
0.015 - 0.001
(0.38 + 0.18)
(2.67 + 0.25)
(0.38 - 0.03)
(2.67 - 0.38)
9
GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Ordering Number
G
M 7130 A
TA5
R
APM Gamma Circuit Type
Output Voltage
Package Type
Shipping Type
Micro
A: Adj
TA5: TO263-5
R: Taping & Reel
T: Tube
3.3 = 3.3V
5.0 = 5.0V
12 = 12.0V
TB5: TO-220-5
TB5B: TO-220B-5
8
10
10
6
相关型号：
©2020 ICPDF网 联系我们和版权申明