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| 型号： | MAX8620YETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC UPMIC FOR MPU 14-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 微型电源管理集成电路（UPMIC），DSP |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 3 |
| 输出电压： | 0.6 V ~ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
19-3564; Rev 0; 1/05
ATION
EVALU
AVAIL
KIT
ABLE
μPMIC for Microprocessors or DSPs
in Portable Equipment
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
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
Ordering Information
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.
PART
MAX8620YETD
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
14 TDFN-EP
(T1433-2)
TOP
MARK
AAB
Cellular Handsets
Applications
Typical Operating Circuit
Smart Phones/PDA Phones
PDAs
Wireless LAN
Microprocessor and DSP Solutions including
V IN
IN2
IN1
OUT1
OUT2
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
MSM?, XScale?, ARM?, and OMAP?
BP
MAX8620Y
V LOGIC
100k ?
EN2
RESET
RESET
OUT3
HF_PWR
LX
0.6V TO 3.3V
500mA
PWR_ON
Pin Configuration appears at end of data sheet.
MSM is a trademark of QUALCOMM, Inc.
XScale is a trademark of Intel Corp.
ARM is a trademark of ARM Limited.
SEL1
SEL2
GND
FB
OMAP is a trademark of Texas Instruments, Inc.
*USE SEL1 AND SEL2 TO SET V OUT1 AND V OUT2
________________________________________________________________ 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
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相关代理商/技术参数 |
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| MAX8620YEVKIT | 功能描述:PMIC 解决方案 MAX8620Y Evaluation Kit RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG+ | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG+T | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| MAX8621ETG-T | 功能描述:PMIC 解决方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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