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PAM2309 데이터시트 PDF




Diodes에서 제조한 전자 부품 PAM2309은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 PAM2309 기능
기능 1A STEP-DOWN DC-DC CONVERTER
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PAM2309 데이터시트, 핀배열, 회로
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




PAM2309 pdf, 반도체, 판매, 대치품
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
µA
%
V
V
µA
°C
°C
PAM2309
Document number: DSxxxxx Rev. 2 - 1
4 of 17
www.diodes.com
January 2013
© Diodes Incorporated

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PAM2309 전자부품, 판매, 대치품
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

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