Module DC-DC 2-OUT 5V/-5V 3A 30W 8-Pin DIP Module

The PTB48580 series of isolated DC/DC converter modules produce a complementary pair of regulated supply voltages for powering line-driver ICs in xDSL telecom applications. The modules operate from a standard telecom (–48 V) central office (CO) supply and can provide up to a 30 W of power in a balanced load configuration. The A-suffix module (±5 V) is designed to power the line driver ICs for the AC-7 ADSL chipset. Other voltage options will power other analog applications requiring a complementary supply with relatively balanced loads. The outputs can also be easily configured for single-ended use. The modules incorporate an On/Off enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO) as standard features. The control inputs, "Enable" and "Sync In," are compatible with the "EN Out" and "Sync Out" signals of the PTB48500 DC/DC converter. This allows the power-up and switching frequency of the PTB48580 series to be directly controlled from a PTB48500. Together a PTB48500 and a PTB48580A converter meet all the system power and sequencing requirements of an AC-7 ADSL chipset. The PTB48580 series uses doublesided surface mount contruction. The package size is based on an industry standard outline and does not require a heatsink. Both through-hole and surface mount pin configurations are available. 

Dual Complementary Outputs (±5 V, ±12 V)

Input Voltage Range: 36 V to 75 V

On/Off Enable for Sequencing

1500 VDC Isolation

Over-Current Protection

Over-Temperature Shutdown

Under-Voltage Lockout

Temp Range: –40 to +85°C

Industry Standard Outline

Fixed Frequency Operation

Synchronizes with PTB48500

Powers line driver ICs for AC-7 and other xDSL chipsets

Safety Approvals: (Pending):

EN60950

UL/cUL60950