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GT1504-5V の電気的特性と機能

GT1504-5VのメーカーはGMOS Technologyです、この部品の機能は「2A PWM Buck Switching Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 GT1504-5V
部品説明 2A PWM Buck Switching Regulator
メーカ GMOS Technology
ロゴ GMOS Technology ロゴ 




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GT1504-5V Datasheet, GT1504-5V PDF,ピン配置, 機能
GT1504
150Khz, 2A PWM Buck Switching Regulator
General Description
Features
The GT1504 is a monolithic integrated circuit that
provide all the active functions for a step-down
switching regulator, capable of driving a 2A load
without additional transistor component. Requiring
a minimum number of external component, the
board space can be saved easily. The external
shutdown function can be controlled by TTL logic
level and then come into standby mode. The
internal compensation makes feedback control
have good line and load regulation without external
design. Regarding protected function, thermal
shutdown is to prevent over temperature operating
from damage, and current limit is against over
current operating of the output switch. The GT1504
operates at a switching frequency of 150Khz thus
allowing smaller sized filter components than what
would be needed with lower frequency switching
regulators. Other features include a guaranteed
+4% tolerance on output voltage under specified
input voltage and output load conditions, and +15%
on the oscillator frequency. The output version
included fixed 3.3V, 5V, 12V, and an adjustable
type. The packages are available in a standard
8-lead SOP8.
- 3.3V, 5V, 12V and adjustable output versions
- Adjustable version output voltage range, 1.23V to
37V +4% max over line and load condiction
- SOP-8L packages
- Voltage mode non-synchronous PWM control
- Thermal-shutdown and current-limit protection
- ON/OFF shutdown control input
- Input voltage range up to 40V
- Output load current: 2A
- 150 kHz fixed frequency internal oscillator
- Low power standby mode
- Built-in switching transistor on chip
Applications
- Simple High-efficiency step-down(buck) regulator
- Efficient preregulator for linear regulators
- On-card switching regulators
- Positive to negative converter
- Battery Charger
Pin Assignments 脚位排列
(Top View)
VIN 1
Out 2
FB 3
SD 4
8 GND
7 GND
6 GND
5 GND
SOP-8L
Pin Descriptions 脚位描述
Name
VIN
Out
Gnd
FB
SD
Description
Operating voltage input.输入脚
Switching output.输出脚
Ground.接地脚
Output voltage feedback control.反馈脚
ON/OFF Shutdown.使能脚
150Khz, 2A PWM Buck Switching Regulator
Ordering Information
GT1504 XX X X
Output version
Package
-ADJ : Adjustable
-33 : 3.3V
-50 : 5.0V
-12 : 12V
BLANK: SOP-8L
Packing
Blank : Tube
A : Taping
GT1504
Block Diagram
SD
Current
Source
bias
1.235V
Reference
2.5V
Regulator
Start
up
200mV
220 mV
+
Comp_
VIN
Comp
+
FB
+
Amp
_
Comp
+
Pre-driver
2A
Switch
150kHz
OSC.
Thermal
Limit
Output
Gnd
GMOS Technology Crop.
www.gmos-semi.com
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GMOS Technology Corp.
www.gmos-semi.com
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1 Page





GT1504-5V pdf, ピン配列
150Khz, 2A PWM Buck Switching Regulator
GT1504
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
Efficiency
5.10
5.05
VIN =20V, I LOAD=2A
Normalized at TJ=25oC
10
0
95
2A Load
90
5.00
85 5V
4.95
4.90
-50 -25
0 25 50 75 100 125
JUNCTION TEMPERATURE(oC)
80
3.3V
75
70
8
10 15 20 25 30 35 40
JUNCTION TEMPERATURE(oC)
Switch Saturation Voltage
1. 7
1 : -40 oC
2 : 25 oC
1.6 3 : 125 oC
1. 5
1. 4
1
1. 3
2
3
1. 2
2.0
34
SW ITCH CURRENT(A)
5
Switch Current Limit
8.0
6.0
VIN =10V 20V 30V
4.0
2.0
0.0
0
1 23 4 5
Output current Io (A)
67
Operating Quiescent Current
25. 0
20. 0
15. 0
Switch ON
10. 0
Switch OFF
5.0
0.0
-50 -25
0 25
50 75 100 125
JUNCTION TEMPERATURE(oC)
GMOS Technology Corp.
www.gmos-semi.com
5/9
200. 0
Shutdown Quiescent Current
130. 0
100. 0
80.0
1
2
3
40.0
VON/OFF=5V
1 : -40 oC
2 : 25 oC
3 : 125 oC
0.0 10 20 30 40
SUPPLY VOLOTAGE (V)
150Khz, 2A PWM Buck Switching Regulator
GT1504
Typical Performance Characteristics (Continued)
Minimum Operating Supply Voltage
5.0
4.0
3.0
2.0
1.0
VOUT =1.23V
ILOAD=120mA
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE (oC)
150.0
120.0
90.0
ON/OFF Pin Current (Sinking)
V-4IN0=o4C0VTJ 125oC
60.0
30.0
0.0
1.4 5 10 15 20 22 23 24 25
ON/OFF PIN VOLTAGE (V)
ON/OFF Threshold Voltage
5.0
4.0
3.0
2.0
1.0
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE (oC)
Switch Frequency
200
150
100
50
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE (oC)
Feedback Pin Bias Current
50.0
40.0
30.0
20.0
Adjustable Version Only
10.0
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE(oC)
GMOS Technology Corp.
www.gmos-semi.com
6/9
Thermal protection
10
8
6
4
2
0
50
TSC OFF
TSD ON
75 100 125 150 175 200
JUNCTION TEMPERATURE( o C)


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部品番号部品説明メーカ
GT1504-5V

2A PWM Buck Switching Regulator

GMOS Technology
GMOS Technology


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