|
|
|
부품번호 | PAM2309 기능 |
|
|
기능 | 1A STEP-DOWN DC-DC CONVERTER | ||
제조업체 | Diodes | ||
로고 | |||
전체 17 페이지수
A Product Line of
Diodes Incorporated
PAM2309
1A STEP-DOWN DC-DC CONVERTER
Description
The PAM2309 is a step-down current-mode, DC-DC converter. At
heavy load, the constant frequency PWM control performs excellent
stability and transient response. To ensure the longest battery life in
portable applications, the PAM2309 provides a power-saving Pulse-
Skipping Modulation (PSM) mode to reduce quiescent current under
light load operation to save power.
The PAM2309 supports a range of input voltages from 2.5V to 5.5V,
allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH
cell, USB, and other standard power sources. The output voltage is
adjustable from 0.6V to the input voltage. All versions employ internal
power switch and synchronous rectifier to minimize external part
count and realize high efficiency. During shutdown, the input is
disconnected from the output and the shutdown current is less than
0.1µA. Other key features include under-voltage lockout to prevent
deep battery discharge.
The PAM2309 is available in TSOT25, DFN2x2-6 Pin and QFN3x3-16
Pin packages.
Pin Assignments
Top View
TSOT25
Features
• Efficiency up to 96%
• Only 40µA (typ) Quiescent Current
• Output Current: Up to 1A
• Internal Synchronous Rectifier
• 1.5MHz Switching Frequency
• Soft-Start
• Under-Voltage Lockout
• Short Circuit Protection
• Thermal Shutdown
• 5-pin Small TSOT25, DFN2x2-6 Pin and QFN3x3-16 Pin
Packages
• Pb-Free Package
Applications
• Cellular Phone
• Portable Electronics
• Wireless Devices
• Cordless Phone
• Computer Peripherals
• Battery Powered Widgets
• Electronic Scales
• Digital Frame
PAM2309
Document number: DSxxxxx Rev. 2 - 1
1 of 17
www.diodes.com
January 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
PAM2309
Electrical Characteristics (@TA = +25°C, VIN = 3.6V, VO = 1.8V, CIN = 10µF, CO = 10µF, L = 4.7µH, unless otherwise specified.)
Parameter
Input Voltage Range
Regulated Feedback Voltage
Reference Voltage Line Regulation
Regulated Output Voltage Accuracy
Peak Inductor Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
Oscillator Frequency
Drain-Source On-State Resistance
SW Leakage Current
High Efficiency
EN Threshold High
EN Threshold Low
EN Leakage Current
Over Temperature Protection
OTP Hysteresis
Symbol
VIN
VFB
ΔVFB
VO
IPK
LNR
LDR
IQ
ISD
fOSC
RDS(ON)
ILSW
η
VEH
VEL
IEN
OTP
OTH
Test Conditions
IO = 100mA
VIN = 3V,VFB = 0.5V or VO = 90%
VIN = 2.5V to 5V, IO = 10mA
IO = 1mA to 800mA
No load
VEN = 0V
VO = 100%
VFB = 0V or VO = 0V
IDS = 100mA
P MOSFET
N MOSFET
Min
2.5
0.490
-3
1.2
1.5
Typ
0.500
0.3
1.5
0.2
0.5
40
0.1
1.5
500
0.30
0.35
±0.01
96
±0.01
150
30
Max
5.5
0.510
+3
0.5
1.5
70
1.0
1.8
0.45
0.50
1
0.3
Units
V
V
%/V
%
A
%/V
%
µA
µA
MHz
kHz
Ω
Ω
µA
%
V
V
µA
°C
°C
PAM2309
Document number: DSxxxxx Rev. 2 - 1
4 of 17
www.diodes.com
January 2013
© Diodes Incorporated
4페이지 A Product Line of
Diodes Incorporated
PAM2309
Typical Performance Characteristics (cont.) (@TA = +25°C, CIN = 10µF, CO = 10µF, L = 4.7µH, unless otherwise specified.)
PAM2309
Document number: DSxxxxx Rev. 2 - 1
7 of 17
www.diodes.com
January 2013
© Diodes Incorporated
7페이지 | |||
구 성 | 총 17 페이지수 | ||
다운로드 | [ PAM2309.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 |
PAM2301 | 800mA Step-Down DC-DC Converters | Power Analog Micoelectronics |
PAM2301 | 800mA STEP-DOWN DC-DC CONVERTER | Diodes |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |