- 您現在的位置：買賣IC網 > PDF目錄380438 > MAX8620Y (Maxim Integrated Products, Inc.) PMIC for Microprocessors or DSPs in Portable Equipment PDF資料下載
參數資料
| 型號： | MAX8620Y |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | PMIC for Microprocessors or DSPs in Portable Equipment |
| 中文描述： | µPMIC，用于便攜式設備中的微處理器或DSP |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 409K |
| 代理商： | MAX8620Y |
General Description
The MAX8620Y micro-power-management integrated
circuit (μPMIC) powers low-voltage microprocessors or
DSPs in portable devices. The μPMIC includes a high-
efficiency step-down DC-DC converter, two low-
dropout linear regulators (LDOs), a microprocessor
reset output, and power-on/off control logic. This device
maintains high efficiency at light loads with a low 115μA
supply current, and its miniature TDFN package makes
it ideal for portable devices.
The MAX8620Y’s step-down DC-DC converter utilizes a
proprietary 4MHz hysteretic-PWM control scheme that
allows for ultra-small external components. Internal syn-
chronous rectification improves efficiency and elimi-
nates the external Schottky diode that is required in
conventional step-down converters. The output voltage
is adjustable from 0.6V to 3.3V, with guaranteed output
current up to 500mA.
The MAX8620Y’s two LDOs offer low 45μV
RMS
output
noise and a low dropout of only 200mV at 200mA. Each
LDO delivers at least 300mA of continuous output cur-
rent. The output voltages are pin selectable from 1.8V
to 3.3V for flexibility.
A microprocessor reset output (
RESET
) monitors OUT1
and warns the system of impending power loss allow-
ing safe shutdown.
RESET
asserts during power-up,
power-down, shutdown, and fault conditions where
V
OUT1
is below its regulation voltage.
Applications
Cellular Handsets
Smart Phones/PDA Phones
PDAs
Wireless LAN
Microprocessor and DSP Solutions including
MSM, XScale, ARM, and OMAP
Features
Three Regulators and a Reset in One Package
High-Efficiency Step-Down Converter
Up to 4MHz Fixed Switching Frequency
500mA Guaranteed Output Current
0.6V to 3.3V Adjustable Output Voltage
±2% Initial Accuracy
Fast Voltage-Positioning Transient Response
Internal Synchronous Rectifier
Two 300mA LDO Regulators
200mV Dropout at 200mA Load
Low 45μV
RMS
Output Noise
3% Accuracy over Line, Load, and Temperature
Overcurrent Protection
Nine Pin-Selectable Output-Voltage Settings
30ms (min)
RESET
Output Flag
2.7V to 5.5V Input
115μA (typ) Supply Current at No Load
Thermal-Overload Protection
Tiny 3mm x 3mm x 0.8mm TDFN Package
M
μPMIC for Microprocessors or DSPs
in Portable Equipment
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
MAX8620Y
OUT1
V
IN
V
LOGIC
100k
RESET
OUT2
LX
FB
GND
IN2
BP
HF_PWR
PWR_ON
SEL1
RESET
SEL2
EN2
IN1
1.80V, 2.60V, 2.80V, 2.85V,
3.00V, OR 3.30V*
300mA
1.80V, 2.50V, 2.60V,
2.85V, OR 3.00V*
300mA
OUT3
0.6V TO 3.3V
500mA
*USE SEL1 AND SEL2 TO SET V
OUT1
AND V
OUT2
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX8620YETD
-40°C to +85°C
14 TDFN-EP
(T1433-2)
AAB
Typical Operating Circuit
19-3564; Rev 0; 1/05
MSM is a trademark of QUALCOMM, Inc.
XScale is a trademark of Intel Corp.
ARM is a trademark of ARM Limited.
OMAP is a trademark of Texas Instruments, Inc.
EVALUATION KIT
AVAILABLE
Pin Configuration appears at end of data sheet.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX8743 | Dual, High-Efficiency, Step-Down Controller with High Impedance in Shutdown |
| MAX8743EEI | Dual, High-Efficiency, Step-Down Controller with High Impedance in Shutdown |
| MAX8743ETX | Dual, High-Efficiency, Step-Down Controller with High Impedance in Shutdown |
| MAX8758 | Step-Up Regulator with Switch Control and Operational Amplifier for TFT LCD |
| MAX8758ETG | Step-Up Regulator with Switch Control and Operational Amplifier for TFT LCD |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX8620YC/DW | 功能描述:PMIC 解決方案 MicroPMIC for Microprocessors or DSPs in Portable Equipment RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8620YC/W | 功能描述:PMIC 解決方案 MicroPMIC for Microprocessors or DSPs in Portable Equipment RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8620YETD | 制造商:Maxim Integrated Products 功能描述:MICROPMIC FOR MICROPROCESSORS OR DSPS IN PORT - Rail/Tube |
| MAX8620YETD+ | 制造商:Maxim Integrated Products 功能描述:PWR MANAGEMENT 14TDFN EP - Rail/Tube |
| MAX8620YETD+T | 功能描述:PMIC 解決方案 uPMIC for MPU/DSP in Portable Equipment RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
發布緊急采購，3分鐘左右您將得到回復。