GENERAL DESCRIPTION
The ACT6359 step-up DC/DC converter drives white LEDs with an externally programmable constant current.
This device features an integrated, 40V power MOSFET that is capable of driving up to
ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via simple external circuitry, which accepts either a PWM or an analog dimming control signal.
The ACT6359 features a variety of protection circuits, including integrated over voltage protection (OVP), cycle-by-cycle current limiting, and thermal shutdown protection circuitry.
The ACT6359 has a 500mA current limit, and is available in a small 6-pin SOT23-6 package.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* 500mA Peak Current
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny SOT23-6 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices

GENERAL DESCRIPTION
The ACT6360 step-up DC/DC converter drives white LEDs with an externally programmable constant current.
This device features an integrated, 40V power MOSFET that is capable of driving up to
ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via simple external circuitry, which accepts either a PWM or an analog dimming control signal.
The ACT6360 features a variety of protection circuits, including integrated over voltage protection (OVP), cycle-by-cycle current limiting, and thermal shutdown protection circuitry.
The ACT6360 has a 1000mA current limit, and is available in a small 6-pin SOT23-6 package.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* 1000mA Peak Current
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny SOT23-6 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices

GENERAL DESCRIPTION
 The patent-pending ACT8798 is a complete, costeffective, highly-efficient ActivePMUTM power management solution that is ideal for a wide range of portable handheld equipment.
This device integrates three step-down DC/DC converters and three low dropout linear regulators (LDOs) into a single, thin, space-saving package. An I2C Serial Interface provides programmability for the DC/DC converters and LDOs.
REG1, REG2 and REG3 are fixed-frequency, current-mode PWM step-down DC/DC converters that are optimized for high efficiency and are capable of supplying up to 1.2A, 1.2A and 750mA, respectively.
REG4, REG5 and REG6 are low noise, high PSRR linear regulators that are capable of supplying up to 250mA each.
The ACT8798 is available in a tiny 4mm x 4mm 24-pin Thin-QFN package that is just 0.75mm thin.

FEATURES
* Multiple Patents Pending
* Six Integrated Regulators
- 1.2A PWM Step-Down DC/DC
- 1.2A PWM Step-Down DC/DC
- 750mA PWM Step-Down DC/DC
- 250mA Low Noise LDO
- 250mA Low Noise LDO
- 250mA Low Noise LDO
* I2CTM Compatible Serial Interface
- Programmable Output Voltages
- Configurable Operating Modes
* Minimal External Components
* 4x4mm, Thin-QFN (TQFN44-24) Package
- Only 0.75mm Height
- RoHS Compliant

APPLICATIONS
* Portable Devices and PDAs
* Wireless Handhelds
* DMB Enabled Devices
* GPS Receivers, etc.

GENERAL DESCRIPTION
The ACT6357 and ACT6358 step-up DC/DC converters drive white LEDs with an externally programmable constant current.
These devices feature integrated, 40V power MOSFETs that are capable of driving up to ten white LEDs in series, providing inherent current matching for uniform brightness.
WLED brightness adjustment is easily achieved via a dual-function pin, which accepts either a PWM or an analog dimming control signal.
The ACT6357 and ACT6358 feature a variety of protection circuits, including integrated over voltage protection (OVP), programmable soft-start, cycleby- cycle current limiting, and thermal shutdown protection circuitry.
The ACT6357 has 500mA current limit, while the ACT6358 has 1A current limit.
Both parts are available in a small 3mm x 3mm 8-pin TDFN33-8.

FEATURES
* High-Efficiency DC/DC WLED Bias Supply
* Internal 40V, 0.55Ω Power MOSFET
* Up to 10 WLEDs per String
* Two Peak Current Options:
-ACT6357: 0.5A
-ACT6358: 1A
* Supports Analog and PWM LED Dimming
* Integrated Over-Voltage Protection (OVP)
* Programmable Soft-Start Function
* Thermal Shutdown
* Cycle-by-Cycle Over Current Protection
* Tiny TDFN33-8 Package

APPLICATIONS
* TFT LCD Displays
* Smart Phones
* Portable Media Players
* GPS/Personal Navigation Devices

ACT6358
ACT6357NH-T
ACT6358NH-T

GENERAL DESCRIPTION
The ACT3704 is a complete linear charging solution for single cell Lithium Ion and Lithium Polymer batteries.
It incorporates an internal 12V power MOSFET for Constant-Current, Constant-Voltage control
(CC/CV).
The battery regulation voltage accuracy is ± 0.5% and can be set to either 4.1V or 4.2V.
The charge current is programmed with an external resistor to a maximum of 1A to minimize total charge time.
The reverse leakage current from the battery is less than 1μA if the input adaptor is disconnected or if there is a reverse battery connection.
The ACT3704 is available in thermally-enhanced SOP-8/EP, and TDFN33-8 packages to accommodate high charge current operation and minimize total charging time.

FEATURES
• Internal High Voltage MOSFET
• Up to 12V Input Voltage
• ±0.5% Output Voltage Accuracy
• Charge Current Thermal Foldback
• Programmable Termination Voltage
• Programmable Fast Charge Current
• Programmable Charging Timer
• No Blocking Diode Required
• Low Reverse Leakage
• Preconditioning for Deeply Depleted Battery
• Low Quiescent Current Standby Mode
• Space-Saving, Thermally-Enhanced SOP- 8/EP, TDFN33-8

APPLICATIONS
• Mobile Phone
• Wireless Headsets
• Portable Media Players
• Cradle Chargers
• Portable Devices

ACT3704YH
ACT3704YH-T
ACT3704NH-T