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AIC2304のメーカーはAnalog Intergrations Corporationです、この部品の機能は「PWM Step-Down DC/DC Converter」です。 |
部品番号 | AIC2304 |
| |
部品説明 | PWM Step-Down DC/DC Converter | ||
メーカ | Analog Intergrations Corporation | ||
ロゴ | |||
このページの下部にプレビューとAIC2304ダウンロード(pdfファイル)リンクがあります。 Total 14 pages
AIC2304
1A Synchronous PWM Step-Down
DC/DC Converter
FEATURES
2.5V to 5.5V Input Voltage Range
1.0A Guaranteed Output Current
Up to 95% Efficiency
Low RDS(ON) Internal Switche: 280mΩ
No Schottky Diode Required
100% Duty Cycle in Low Dropout Operation
Operating Frequency: 1.5MHz
Accurate Reference 0.6V Provides Low
Output Voltages
APPLICATIONS
LCD TV
Multi-function Peripheral
Cellular Phones
CPU I/O Supplies
Cordless Phones
PDAs and Handy-Terminals
Battery-Operated Devices (1 Li-Ion or 3
NiMH/ NiCd)
APPLICATIONS CIRCUIT
DESCRIPTION
The AIC2304 is a low-noise, pulse-width-
modulated (PWM), DC-DC step-down converter.
The device is available in an adjustable version
and fixed output voltages of 1.0V, 1.2V, 1.8V,
and 3.3V. The device features an internal
synchronous rectifier for high efficiency; it
requires no external Schottky diode. Shutdown
mode places the device in standby, reducing
supply current to under 1µA. Other features of
the AIC2304 include high efficiency, low
dropout voltage, short circuit protection, over
temperature protection, and over voltage
protection. It is available in a small 5 pins SOT-
23 and a 6 pins DFN package.
Fig. 1 Fixed Step-Down DC/DC Converter
1
1 Page AIC2304
ORDERING INFORMATION
AI C2304 -X X X X X XX
PACKING TYPE
TR: TAPE & REEL
B G: BA G
PIN CONFIGURATION
TOP VIEW SOT-23 -5
VOU
5
V IN
4
Exam ple:
PACKAGE TYPE
V 5: S OT-23 -5
V5A: SOT-23-5(with do t
at pin 1)
DA: DFN-6L(2x2)
G: Green Package
OUTP UT VOLTA GE
DEFAULT: Adj.
-10: 1.0 V
-12: 1.2 V
-18: 1.8 V
AIC2 304-33 GV 5TR
3.3V Outp ut V ersion,
in SOT-23-5 Gree n P acka ge
& Tape & Ree l Packing Typ e
AIC2 304GV5TR
Ad justab le Versio n,
in SOT-23-5 Gree n P acka ge
& Tape & Ree l Packing Typ e
TOP VIEW
12 3
EN GND LX
Fixe d ve rsion
SOT -23-5
FB VIN
54
TOP VIEW
12 3
EN GN D LX
Adjust able versio n
S OT-23-5
FB VIN
54
12 3
EN GND LX
A djusta ble ve rsio n
TOP VIEW
DFN -6 L (2x2)
VOU
/F B GND LX
65 4
123
Note :
NC EN VIN
The exp osed pa d must be conn ecte d
with GND pin .
3
3Pages AIC2304
ELECTRICAL CHARACTERISTICS
(TA=25C, VIN=3.6V unless otherwise specified.) (Note 1)
PARAMETER
CONDITIONS SYMBOL
MIN
TYP MAX UNITS
Input Voltage Range
VIN 2.5
5.5 V
Output Adjustment Range
VOUT
0.6V
VIN-0.3V
V
Reference Voltage
FB Input Current
P-Channel On-Resistance
N-Channel On-Resistance
LX Leakage Current
VREF 0.588 0.6 0.612
V
VFB = VIN
IFB -50
50 nA
IOUT = 0.2A
PRDS(ON)
280 390 m
IOUT = 0.2A
NRDS(ON)
250 390 m
VLX=0V or VLX=3.6V
-1
1 A
Peak Inductor Current
Quiescent Current
Shutdown Supply Current
EN High-Level Input Voltage
VIN = 5V
IOUT = 0mA,
VFB=0.78V
EN = GND
VIN=2.5V to 5.5V
IPK 1.3 1.6
A
IQ 65 85 A
ISHDN
0.1 1 A
VEN_H
1.5
V
EN Low-Level Input Voltage
VIN=2.5V to 5.5V
VEN_L
0.4 V
Oscillator Frequency
fOSC 1.2 1.5 1.8 MHz
Maximum Duty Cycle
Thermal Shutdown Temperature
DMAX
100
150
%
°C
Thermal Shutdown Hysteresis
25 °C
Note 1: Specifications are production tested at TA=25C. Specifications over the -40C to 85C operating tem-
perature range are assured by design, characterization and correlation with Statistical Quality Con-
trols (SQC).
6
6 Page | |||
ページ | 合計 : 14 ページ | ||
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PDF ダウンロード | [ AIC2304 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
AIC2300 | PWM Step-Down DC/DC Converter | Analog Intergrations Corporation |
AIC2302 | PWM Step-Down DC/DC Converter | Analog Intergrations Corporation |
AIC2304 | PWM Step-Down DC/DC Converter | Analog Intergrations Corporation |
AIC2309 | 1A Dual Synchronous Step-down DC/DC Converter | Analog Intergrations Corporation |