MFG:N/A Package Cooled:N/A D/C:N/A
MFG: N/A
Package Cooled: N/A
D/C: N/A
Description: The MAX1779 triple-output DC-DC converter provides highly efficient regulated voltages required by sma...
The MAX1779 triple-output DC-DC converter provides highly efficient regulated voltages required by small active matrix, thin-film transistor (TFT) liquid-crystal displays (LCDs). One high-power DC-DC converter and two low-power charge pumps convert the +2.7V to +5.5V input supply voltage into three independent output voltages.
The primary high-power DC-DC converter generates a boosted output voltage (VMAIN) up to 13V that is regulated within ±1%. The low-power BiCMOS control circuitry and the low on-resistance (1) of the integrated power MOSFET allows efficiency up to 91%. The 250kHz current-mode pulse-width modulation (PWM) architecture provides fast transient response and allows the use of ultra-small inductors and ceramic capacitors.
The dual charge pumps independently regulate one positive output (VPOS) and one negative output (VNEG).These low-power outputs use external diode and capacitor stages (as many stages as required) to regulate output voltages up to +40V and down to -40V. A proprietary regulation algorithm minimizes output ripple,as well as capacitor sizes for both charge pumps.
The MAX1779 is available in the ultra-thin TSSOP package (1.1mm max height).
IN, SHDN, TGND to GND......................................-0.3V to +6V
DRVN to GND......................................-0.3V to (VSUPN + 0.3V)
DRVP to GND......................................-0.3V to (VSUPP + 0.3V)
PGND to GND...............................................................±0.3V
RDY to GND .....................................................-0.3V to +14V
LX, SUPP, SUPN to PGND .................................-0.3V to +14V
INTG, REF, FB, FBN, FBP to GND..............-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 9.4mW/°C above +70°C) .....755mW
Operating Temperature Range
MAX1779EUE ..............................................-40°C to +85°C
Junction Temperature................................................+150°C
Storage Temperature Range .....................-65°C to +150°C
Lead Temperature (soldering, 10s) ...........................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
MAX1779
PDF/DataSheet Download
IC DC-DC CONV QUAD LCD 24TSSOP
IC DC-DC CONV QUAD LCD 24TSSOP
The MAX1778/MAX1880MAX1885 multiple-outputDC-DC converters provide the regulated voltagesrequired by active matrix thin-film transistor (TFT) liquidcrystal displays (LCD) in a low-profile TSSOP package.One high-power step-up converter and two low-powercharge...
IC CNTRLR PS QUAD HI EFF 28QSOP
IC CNTRLR PS QUAD HI EFF 28QSOP
The MAX1777EEI dual step-down,switch-mode power-supply (SMPS) controllers generate logic-supply voltages in battery-powered systems. The MAX1777/MAX1977/MAX1999 include two pulse-width modulation (PWM) controllers, adjustable from 2V to 5.5V or fixed at 5V a...
Price: 2.3-2.69 USD
instrumentation amplifier, DIP-16, 150kHz, 2.7 V ~ 36 V, 12mA, RoHS Compliant
Price: 0.1-0.5 USD
Timekeeping Chip, 31*8 RAM, 8 SO
Price: 0.1-0.9 USD
35 Watt, GaAs FET, FLL400IP-2
Price: 2.05-2.2 USD
high-performance microcontroller, high speed, low power
Price: 22-24 USD
W/FLASH memory, 16 BIT, DSP controller, LQFP-100 pins, 40MHz, 64KB (32K x 16)
Price: 1.6-2.5 USD
quad operational amplifier, DIP, 28 V, 50 A, 625W, HA17902P, Hitachi
Price: 0.01-1 USD
2.0 Amp, Gate Drive Optocoupler, Integrated (VCE) Desaturation Detection, Fault Status Feedback
Price: 0.13-0.15 USD
XPT4809, MSOP8, XPTEK TECHNOLOGY CO.,LTD
Price: 0.2-2 USD
High-voltage, Switching Transistor, 400V, 0.1A, SOT-89, Wide SOA, Rohm
Price: 5-15 USD
silicon NPN, epitaxial planar type transistor, SMD, more than 20:1 load VSWR, 35v
Price: 0.001-0.2 USD
N-Channel, Logic Level Enhancement Mode, Field Effect Transistor, DIP, 20 A, 30 V
Price: 0.46-0.5 USD
TO220F, transistor, ± 30 V
