A7516E5R [AITSEMI]
DC-DC CONVERTER BOOST;
| 型号： | A7516E5R |
| 厂家： | 
AiT Semiconductor |
| 描述： | DC-DC CONVERTER BOOST DC-DC转换器 |
| 文件： | 总8页 (文件大小：449K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
DESCRIPTION
FEATURES
A7516 is a step-up converter. Its 1.23V feedback
voltage reduces power loss and improves
efficiency.
2.5V to 5.5V Input Voltage
1.23V Feedback Voltage
1.2MHz Fixed Switching Frequency
Internal 0.6A Switch Current Limit
Internal Compensation
Optimized operation frequency can meet the
requirement of small LC filters value and low
operation current with high efficiency. Internal soft
start function can reduce the inrush current. Tiny
package type provides the best solution for PCB
space saving and total BOM cost.
Thermal Shutdown
Available in SOT-25 Package
APPLICATION
Camera Flash White LED
The A7516 is available in SOT-25 package.
PDA LED back light
Digital still cameras
ORDERING INFORMATION
TYPICAL APPLICATION
Package Type
Part Number
A7516E5R
SOT-25
E5
SPQ: 3,000pcs/Reel
A7516E5VR
V: Halogen free Package
R: Tape & Reel
Note
AiT provides all RoHS products
NOTE:
1.23
1. VOUT
=
x(R1+R2)
R2
2. The decoupling capacitors CIN should be
placed as close to the IC as possible.
3. The inductance (L=10uH) is recommended
when the load current is more than 200mA,
otherwise is should be 4.7uH.
REV1.0
- MAR 2017 RELEASED -
- 1 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCRIPTION
Top View
Pin #
1
Symbol
LX
Function
Power Switch Output. LX is the drain of the internal MOSFET switch.
Connect the power inductor and output rectifier to LX. LX can swing
between GND and 30V.
2
3
GND
FB
Ground
Feedback Input. The FB voltage is 1.23V. Connect a resistor divider to FB.
Regulator On/Off Control Input. A high input at EN turns on the converter,
and a low input turns it off. When not used, connect EN to the input supply
for automatic startup.
4
5
EN
IN
Power Supply. Must be locally bypassed.
REV1.0
- MAR 2017 RELEASED -
- 2 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
ABSOLUTE MAXIMUM RATINGS
IN, EN Pin Voltage
-0.3V ~ 6V
-0.3V ~ 30V
-0.3V~ 6V
SW Pin Voltage
All Other Pin Voltage
TJ, Junction Temperature
TA, Ambient Temperature
150°C
-40°C~ 85°C
600mW
Power Dissipation
SOT-25
θJA, Thermal Resistance
θJC, Thermal Resistance
TS, Storage Temperature
Lead Temperature & Time
SOT-25
SOT-25
250°C /W
130°C /W
-65°C ~ 150°C
260°C, 10sec
Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and
operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
Input Voltage Range
Symbol
TJ
Value
Units
V
2.5 to 5.5
VIN to 30
-40 to 125
Output Voltage Range
V
Operating Junction Temperature
°C
REV1.0
- MAR 2017 RELEASED -
- 3 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
ELECTRICAL CHARACTERISTICS
TA=25°C, unless otherwise noted
Parameter
Operating Input Voltage
Feedback Voltage
FB Input Bias Current
SW Leakage
Symbol
VIN
Conditions
Min.
Typ.
-
Max.
Unit
V
2.5
5.5
VFB
1.21
1.23
-10
-
1.25
V
IFB
VFB=1V
-50
-
nA
μA
mA
μA
MHz
%
VSW=20V
-
-
-
-
-
-
-
-
-
1
VFB=1V, Switch
VEN=0V
0.15
0.1
1.2
90
0.3
Quiescent Current
IQ
1
Oscillator Frequency
Maximum Duty Cycle
EN Threshold
fSW
DMAX
VEN
-
-
1
-
V
SW On-Resistance
Current Limit
400
0.6
160
650
mΩ
A
ILIMIT
VIN=4V, Duty Cycle = 50%
-
-
Thermal Shutdown
°C
REV1.0
- MAR 2017 RELEASED -
- 4 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
TYPICAL PERFORMANCE CHARACTERISTICS
1.
3.
5.
Efficiency (VOUT=5V)
2.
4.
6.
Efficiency (VOUT=12V)
Efficiency (VOUT=18V)
Output Voltage vs. Output Current
Output Voltage vs. Output Current
Output Voltage vs. Output Current
REV1.0
- MAR 2017 RELEASED -
- 5 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
7.
Switching Waveform
8.
Switching Waveform
VIN=5V, VOUT=12V, IOUT=200mA
VIN=5V, VOUT=18V, IOUT=150mA
(CH1=VIN, CH2=VOUT, CH3=LX, CH4=ILX)
(CH1=VIN, CH2=VOUT, CH3=LX, CH4=ILX)
9.
Load Transient Response
10. Load Transient Response
VIN=5V, VOUT=18V, IOUT=10mA-150mA
(CH2=VOUT, CH4=ILX)
VIN=5V, VOUT=12V, IOUT=10mA-200mA
(CH2=VOUT, CH4=ILX)
REV1.0
- MAR 2017 RELEASED -
- 6 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
PACKAGE INFORMATION
Dimension in SOT-25 (Unit: mm)
REV1.0
- MAR 2017 RELEASED -
- 7 -
A7516
DC-DC CONVERTER BOOST (STEP-UP)
1.2MHz, 30V/600mA
AiT Semiconductor Inc.
www.ait-ic.com
IMPORTANT NOTICE
AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to
discontinue any integrated circuit product or service without notice, and advises its customers to obtain the
latest version of relevant information to verify, before placing orders, that the information being relied on is
current.
AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to
be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT
products in such applications is understood to be fully at the risk of the customer. As used herein may involve
potential risks of death, personal injury, or server property, or environmental damage. In order to minimize
risks associated with the customer's applications, the customer should provide adequate design and
operating safeguards.
AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT
warrants the performance of its products of the specifications applicable at the time of sale.
REV1.0
- MAR 2017 RELEASED -
- 8 -
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