V-Infinity Supplier Page

V78XX Series

V-Infinity's Highly Efficient SMT DC Switching Regulator is Now Available at Digi-Key

Overview

CUI Inc's power division, V-Infinity, announces the release of the V78XX-500-SMT series, a surface mount version of its 0.5 A V78XX-500 dc switching regulator. The V78XX-500-SMT offers efficiencies of up to 96% and is designed to be a high performance alternative to linear regulators. Unlike linear regulators, the V78XX-500-SMT series does not require a heat sink, making it ideal for applications where board space is at a premium and energy efficiency is a concern.		 V-Infinity's V78XX Series
  • Overview
  • Features
  • Specifications
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The V78XX-500-SMT series is compact, measuring 15.24 x 8.50 x 7.00mm. A wide input range is available from 4.5 to 28Vdc and regulated output voltages of 3.3, 5, 12, and 15Vdc are offered. Output current is 500mA with an operating temperature range of -40 to +71°C at 100% load, derating to 60% load at 85°C. The converters offer short circuit protection, thermal shutdown, very low ripple and noise (10mV p-p typical), and an MTBF of 2 million hours.
  • Efficiency up to 96%
  • No need for heat sinks
  • Wide input range
  • Short circuit protection
  • Thermal shutdown
  • Low ripple and noise
  • Non-isolated
 RoHS Compliant

OUTPUT SPECIFICATIONS

item conditions min. typ. max. unit
output voltage accuracy at 100% load ±2 ±3 %
line regulation Vin = min. to max. at full load ±0.2 ±0.5 %
load regulation 10% to 100% full load ±0.3 ±0.75 %
output ripple 20 MHz bandwidth, output w/ 10µF cap 10 25 mVp-p
short circuit protection continuous, auto recovery upon removal of short
output current limit 1800 mA
dynamic load stability 100% <->10% load ±30 ±75 mV
quiescent current normal input (3.3, 5 V output) 15 mA
thermal shutdown 160 °C
temperature coefficient -40°C ~ 85°C ambient 0.02 %/°C
max load capacitance 1000 µF

GENERAL SPECIFICATIONS

item conditions min. typ. max. unit
On/Off control current on: open or 1.5<Vc≤5V
  off: GND or 0V<Vc<1V
On/Off shutdown threshold voltage 1.1 1.25 1.4 V
shutdown input current 15 30 µA
operating temperature range see derating curve -40 85 °C
operating case temperature 100 °C
storage temperature range -55 125 °C
cooling free air convection
solderability 1.5mm from case for 10 seconds 260 °C
storage humidity relative humidity, non-condensing 95 %
case material plastic (UL94-V0)
MTBF at 25°C per MIL-HDBK-217F 2,000,000 hours
package weight 2.3 grams
Digi-Key Part Number V-Infinity Part Number Description
102-1957-1-ND V7803-500-SMT CONVERTER DC/DC REG 3.3V 500MA SMD
102-1957-2-ND
102-1957-6-ND
102-1958-1-ND V7805-500-SMT CONVERTER DC/DC REG 5V 500MA SMD
102-1958-2-ND
102-1958-6-ND
102-1959-1-ND V7812-500-SMT CONVERTER DC/DC REG 12V 500MA SMD
102-1959-2-ND
102-1959-6-ND
102-1960-1-ND V7815-500-SMT CONVERTER DC/DC REG 15V 500MA SMD
102-1960-2-ND
102-1960-6-ND