Features: Two Low-Dropout-Voltage Regulators
Low 32µVRMS Output Noise
300mA Output Current for Each LDO
70dB PSRR at 10kHz
Independent Shutdown Controls
Low 60mV Dropout at 100mA Load
115µA Operating Supply Current per LDO
1.5V to 3.3V Factory-Preset Output
Small Ceramic Output Capacitors
Output Current Limit
Thermal-Overload and Short-Circuit Protection
1.95W Power-Dissipation Capability (TDFN)
2mm2 Footprint (UCSP)
ApplicationCellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Hand-Held Instruments
Pinout
SpecificationsINA, INB, SHDNA,SHDNB, BP to GND ...................-0.3V to +7V
INA to INB.........................................................-0.3V to +0.3V
OUTA, OUTB to GND ................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration.................................Continuous
Continuous Power Dissipation (TA = +70°C)
8-Bump UCSP (derate 4.7mW/°C above +70°C)..........379mW
8-Pin TDFN (derate 24.4mW/°C above +70°C) ..........1951mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range .........................-65°C to +150°C
8-Pin TDFN Lead Temperature (soldering, 10s)..............+300°C
8-Bump UCSP Solder Profile...........................................(Note 1)DescriptionThe MAX8559 is designed as one kind of low-noise,low-dropout linear regulators operate from a 2.5V to 6.5V input and deliver up to 150mA. These MAX8559 are pin-compatible with the industry-standard "2982" and offer an improved dropout voltage.Typical output noise is 30VRMS,and typical dropout is only 165mV at 150mA.The output voltage of MAX8559 is preset to voltages in the range of 2.5V to 6.5V, in 300mV increments.
Features of the MAX8559 are:(1)two low-dropout-voltage regulators;(2)low 32VRMS output noise;(3)300mA output current for each LDO;(4)70dB PSRR at 10kHz;(5)independent shutdown controls;(6)low 60mV dropout at 100mA load;(7)115A operating supply current per LDO;(8)1.5V to 3.3V factory-preset output;(9)small ceramic output capacitors;(10)output current limit;(11)thermal-overload and short-circuit protection;(12)1.95W power-dissipation capability (TDFN).
MAX8559 can be used in cellular and cordless phones,PDAs and palmtop computers,notebook computers,digital cameras,PCMCIA cards,wireless LAN cards and hand-held instruments.The absolute maximum ratings of the MAX8559 can be summarized as:(1)INA to INB:-0.3V to +0.3V;(2)OUTA, OUTB to GND:-0.3V to (VIN+0.3V);(3)output short-circuit duration:continuous;(4)continuous power dissipation (TA=+70°C) 8-Bump UCSP (derate 4.7mW/°C above +70°C):379 mW;(5)continuous power dissipation (TA=+70°C) 8-Pin TDFN (derate 24.4mW/°C above +70°C):1951mW;(6)operating temperature range:-40°C to +85°C;(7)junction temperature:+150°C;(8)storage temperature range:-65°C to +150°C;(9)8-Pin TDFN lead temperature (soldering,10s):+300°C;(10)8-Bump UCSP solder profile:For UCSP solder profile information, please refer to the application note APP_1891 on the Maxim website, www.maxim-ic.com.
MAX8559 Data Sheet
