MAX1585：5-Channel Slim DSC Power Supplies
Highest Efficiency, Smallest, Five-Channel Slim Digital Still Camera Power Supply
The MAX1584/MAX1585 provide a complete power-supply solution for slim digital cameras. They improve performance and lower component count and size compared to conventional multichannel controllers in 2-cell AA, 1-cell Li+, and dual-battery designs. On-chip MOSFETs provide up to 95% efficiency for critical power supplies, while additional channels operate with external FETs for optimum design flexibility. The MAX1584/MAX1585 include five high-efficiency DC-DC conversion channels: Step-up DC-DC converter with on-chip FETs Step-down DC-DC converter with on-chip FETs Three PWM DC-DC controllers for CCD, LCD, LED, or other functions The step-down DC-DC converter can operate directly from the battery or from the step-up output, providing boost-buck capability with a compound efficiency of up to 90%. Both devices include three PWM DC-DC controllers: the MAX1584 includes two step-up controllers and one step-down controller, while the MAX1585 includes one step-up controller, one inverting controller, and one step-down controller. All DC-DC channels operate at one fixed frequency—settable from 100kHz to 1MHz—to optimize size, cost, and efficiency. Other features include soft-start, power-OK outputs, and overload protection. The MAX1584/MAX1585 are available in space-saving, 32-pin thin QFN packages. An evaluation kit is available to expedite designs.
Key Features
| MAX1584, MAX1585: Functional Diagram Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1584-MAX1585 Data Sheet | MAX1584-MAX1585.pdf |
Parametrics
| Part Number | Primary Topology | Monitor/Control Features | DC-DC/Power Features | LCD/LED/Flash/CCD Features | VIN (V) | VIN (V) | VOUT (V) | VOUT (V) | Max. IOUT (A) | Max. IOUT (A) | Oper. Freq. (kHz) | Inverting Outputs | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | See Notes | ||||||||||
| MAX1584 | Step-Down Step-Up Step-Up/Down | Low Batt./POK Output Shutdown | Adj. Frequency Current Limit Fixed Freq./PWM Internal Switch Soft Start Sync. Rectifier | CCD Bias TFT Bias | 0.7 | 5.5 | 1.25 | 5.5 | 1 | 1 | 1000 | - | TQFN/32 | $2.61 @1k |
| MAX1585 | 1 | TQFN/32 | ||||||||||||
Design kits & evaluation modules
Related Products
- MAX1566：Six-Channel, High-Efficiency, Digital Camera Power Supplies
- MAX1567：Six-Channel, High-Efficiency, Digital Camera Power Supplies
- MAX1565：Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply
- MAX1801：Digital-Camera Step-Up Slave DC-DC Controller
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1585ETJ | No Longer Available | MAX1585ETJ+ | TQFN,;32 pin;26 mm² | -40°C to +85°C | No |
| MAX1585ETJ+ | Active | TQFN,;32 pin;26 mm² | -40°C to +85°C | Lead Free | |
| MAX1585ETJ+T | Active | TQFN,;32 pin;26 mm² | -40°C to +85°C | Lead Free | |
| MAX1585ETJ-T | No Longer Available | MAX1585ETJ+T | QFN;32 pin | -40°C to +85°C | See data sheet |
- MAX1584-MAX1585.pdf MAX1585
- 功能框图 MAX1585
