Part Number: MAX17480

Function: AMD 2-/3-Output Mobile Serial VID Controller

Package: QFN 40 Pin Type

Manufacturer: Maxim Integrated

Pinouts:

 

Description

The MAX17480 is a triple-output, step-down, fixed frequency controller for AMD’s serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17480 consists of two high-current SMPSs for the CPU cores and one 4A internal switch SMPS for the NB core. The two CPU core SMPSs run 180° out-of-phase for true interleaved operation, minimizing input capacitance. The 4A internal switch SMPS runs at twice the switching frequency of the core SMPS, reducing the size of the external components.

The MAX17480 is fully AMD SVI compliant. Output voltages are dynamically changed through a 2-wire SVI,allowing the SMPSs to be individually programmed to different voltages. A slew-rate controller allows controlled transitions between VID codes and controlled soft-start. SVI also allows each SMPS to be individually set into a low-power pulse-skipping state.

Features

1. Dual-Output Fixed-Frequency Core Supply Controller

2. 4A Internal Switch Northbridge SMPS

3. ±0.5% VOUTAccuracy over Line, Load, and Temperature

4. AMD SVI-Compliant Serial Interface with Switchable Address

5. 7-Bit On-Board DAC: 0 to +1.550V Output Adjust Range

6. Integrated Boost Switches

7. Adjustable Slew-Rate Control

8. Power-Good (PWRGD) and Thermal-Fault (VRHOT) Outputs

9. System Power-OK (PGD_IN) Input

10. Overvoltage, Undervoltage, and Thermal-Fault Protection

11. Voltage Soft-Startup and Passive Shutdown

12.< 1µA Typical Shutdown Current

Other data sheets are available within the file: MAX17480GTL+

MAX17480 Datasheet PDF Download

Part Number: LM8333

Function: Mobile I/O Companion Supporting Key-Scan, I/O Expansion

Package: 32–pin WQFN and a 49-pin csBGA Type

Manufacturer: Texas Instruments

Pinouts:

 

Description

The LM8333 Mobile I/O Companion offloads the burden of keyboard scanning from the host, while providing extremely low power consumption in both operational and standby modes. It supports keypad matrices up to 8 × 8 in size (plus another 8 special function keys), for portable applications such as cellphones, PDAs, games, and other handheld applications. Key press and release events are encoded into a byte format and loaded into a FIFO buffer for retrieval by the host processor. An interrupt output (IRQ) is used to signal events such as keypad activity, a state change on either of two interrupt-capable general-purpose I/O pins, or an error condition. Interrupt and error codes are available to the host by reading dedicated registers. Four general-purpose I/O pins are available, two of which have interrupt capability. A pulse-width modulated output based on a host-programmable internal timer is also available, which can be used as a general-purpose output if the PWM function is not required. To minimize power, the LM8333 automatically enters a low-power standby mode when there is no keypad, I/O, or host activity. The device is packaged in a 32–pin WQFN and a 49-pin csBGA. Both are chip-scale packages.

Features

• 8 × 8 Standard Keys
• 8 Special Function Keys (SF Keys) Providing a Total of 72 Keys for the Maximum Keyboard Matrix
• ACCESS.Bus (I2C-compatible) Communication Interface to the Host
• Four General Purpose Host Programmable I/O Pins with Two Optional (Slow) External Interrupts
• 15-byte FIFO Buffer to Store Key Pressed and Key Released Events
• Error Control with Error Reports on (FIFO Overrun, Keypad Overrun, Invalid Command)
• Host Programmable PWM
• Host Programmable Active Time and Debounce Time

Other data sheets are available within the file:

8333AXS, LM8333F, LM8333FLQ8X/NOPB, LM8333FLQ8Y/NOPB

LM8333 Datasheet PDF Download