|
|
|
부품번호 | A7525 기능 |
|
|
기능 | SYNCHRONOUS STEP-UP DC-DC CONVERTER | ||
제조업체 | AiT Semiconductor | ||
로고 | |||
전체 13 페이지수
AiT Semiconductor Inc.
www.ait-ic.com
A7525
500mA, 1.2MHz HIGH EFFICIENCY
SYNCHRONOUS STEP-UP DC-DC CONVERTER
DESCRIPTION
The A7525 is synchronous, fixed frequency,
FEATURES
High Efficiency: Up to 92%
step-up DC/DC converters delivering high
1.2MHz Constant Switching Frequency
efficiency in a 6-lead SOT package. Capable of
3.3V Output Voltage at IOUT=100mA from a
supplying 3.3V at 100mA from a single AA cell
Single AA Cell; 5.0V Output Voltage at
input, the device contain an internal NMOS switch
IOUT=500mA from one Li battery.
and PMOS synchronous rectifier. A switching
Low Start-up Voltage: 1.0V
frequency of 1.2MHz minimizes solution footprint Integrated main switch and synchronous rectifier.
by allowing the use of tiny, low profile inductors
No Schottky Diode Required
and ceramic capacitors. The current mode PWM 2.5V to 5V Output Voltage Range
design is internally compensated, reducing
Automatic Pulse Skipping Mode Operation
external parts count.
Tiny External Components
<1μA Shutdown Current
The A7525 features continuous switching at light Anti-ringing Control Reduces EMI
loads. Anti-ringing control circuitry reduces EMI
Available in SOT-26 Package
concerns by damping the inductor in discontinuous
mode, and the device features low shutdown
current of under 1uA.
APPLICATION
PDA
DSC
A7525 is available in SOT-26 package.
LCD Panel
RF-Tags
ORDER INFORMATION
MP3
Portable Instrument
Package Type
Part Number
Wireless Equipment
SOT-26
A7525E6R-ADJ
E6
A7525E6VR-ADJ
Typical Application Circuit
Note
V: Green Package
R : Tape & Reel
AiT provides all Pb free products
Suffix “ V “ means Green Package
REV1.1
-MAR 2009 RELEASE – APR 2010 REVISED -
-1-
AiT Semiconductor Inc.
www.ait-ic.com
A7525
500mA, 1.2MHz HIGH EFFICIENCY
SYNCHRONOUS STEP-UP DC-DC CONVERTER
ELECTRICAL CHARACTERISTICS
VIN =1.2V, VOUT=3.3V, TA = 25°C, unless otherwise specified
Parameter
Condition
Minimum Start-Up Voltage
IOUT = 1mA
Minimum Operating Voltage
VCE = VIN
Output Voltage Range
Feedback Voltage
–40 ℃≤TA≤ 85℃
Quiescent Current(Shutdown)
VSHDN = 0V
Quiescent Current(Active)
Measured on VOUT
NMOS Switch Leakage
VSW = 5V
PMOS Switch Leakage
VSW = 0V
NMOS Switch ON Resistance
VOUT = 3.3V
VOUT = 5V
PMOS Switch ON Resistance
VOUT = 3.3V
VOUT = 5V
VOUT = 3.3V, IOUT = 1mA
Output Voltage
VOUT = 5V , IOUT = 1mA,
VIN = 2.4V
Line Regulation
VIN = 0.8V to 3.0V,
IOUT = 10mA
Load Regulation
IOUT = 1mA to 100mA
NMOS Current Limit
VIN=2.5V,IL=1~100mA
Current Limit Delay to Output
Note 6
Max Duty Cycle
VFB = 1.15V,
–40℃ ≤TA≤ 85℃
Switching Frequency
CE Input Threshold
CE Input Current
–40℃ ≤TA ≤85℃
VCE = 5.5V
Min.
-
-
2.5
1.192
-
-
-
-
-
3.201
4.850
-
-
600
-
80
0.95
0.85
0.35
Typ.
1
0.8
-
1.230
0.01
300
0.1
0.1
0.40
0.35
0.70
0.60
3.300
5.000
1
0.02
850
40
85
1.2
1.2
0.60
0.01
Max.
-
-
5
1.268
1
500
5
5
-
-
-
-
3.399
5.150
-
-
-
-
-
1.5
1.5
1.50
1
Unit
V
V
V
V
μA
μA
μA
μA
Ω
Ω
Ω
Ω
V
V
%/V
%/mA
mA
ns
%
MHz
MHz
V
μA
REV1.1
-MAR 2009 RELEASE – APR 2010 REVISED -
-4-
4페이지 AiT Semiconductor Inc.
www.ait-ic.com
BLOCK DIAGRAM
A7525
500mA, 1.2MHz HIGH EFFICIENCY
SYNCHRONOUS STEP-UP DC-DC CONVERTER
REV1.1
-MAR 2009 RELEASE – APR 2010 REVISED -
-7-
7페이지 | |||
구 성 | 총 13 페이지수 | ||
다운로드 | [ A7525.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
A7523 | SUPER-SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR | AiT Semiconductor |
A7525 | SYNCHRONOUS STEP-UP DC-DC CONVERTER | AiT Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |