For more information, please visit the product page. date 01/26/2016 page 1 of 6 SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR FEATURES • • • • • • • • 1 A current output high efficiency up to 93% no heat sink required SMT package remote on/off control low ripple and noise short circuit protection, thermal shutdown wide temperature (-40°C~+85°C) RoHS MODEL input voltage output voltage output current output power ripple and noise1 efficiency level2 range (Vdc) (Vdc) (mA) max (W) max (mVp-p) typ (%) V7801-1000-SMT 4.75 ~ 15 1.5 1,000 1.5 35 76 V7801A-1000-SMT 4.75 ~ 15 1.8 1,000 1.8 35 79 V7802-1000-SMT 5 ~ 18 2.5 1,000 2.5 35 83 V7803-1000-SMT 5 ~ 18 3.3 1,000 3.3 35 84 V7805-1000-SMT 7 ~ 18 5.0 1,000 5 35 90 V7806-1000-SMT 8.5 ~ 18 6.5 1,000 6.5 35 93 Notes: 1. 20 MHz bandwidth 2. Measured at Vin min. and 100% load PART NUMBER KEY V78 XX - XXX -SMT- X Base Number Output Voltage Output Current cui.com Package Options "blank" = standard TR = Tape & Reel For more information, please visit the product page. CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 01/26/2016 │ page 2 of 6 INPUT parameter conditions/description min typ max units operating input voltage 1.5, 1.8 Vdc models 2.5, 3.3 Vdc models 5.0 Vdc model 6.5 Vdc model 4.75 5.0 7.0 8.5 12 12 12 12 15 18 18 18 Vdc Vdc Vdc Vdc input filter capacitor remote on/off on: off: open or 1.2 < Vc ≤ 6 V Vc < 0.6 V on/off control current on: off: open or 1.2 < Vc ≤ 6 V GND or Vc < 0.4 V 10 shutdown input current µF 100 200 µA 120 200 µA OUTPUT parameter conditions/description min typ max capacitive load max units 1,000 µF line regulation measured from low line to high line at 100% load ±0.2 ±0.5 % load regulation measured from 10% to full load at nominal input ±0.4 ±1.0 % voltage accuracy measured from low line to high line at 100% load adjustability1 1.8 2.5 3.3 5.0 switching frequency PWM type temperature coefficient -40 °C ~ +85 °C ambient Notes: Vdc Vdc Vdc Vdc model model model model ±2 1.5 1.5 1.8 2.5 ±3 % 3.6 3.9 5.5 6.5 Vdc Vdc Vdc Vdc 1.4 MHz ±0.02 %/°C 1. Output voltage adjustment must meet Vin-Vo > 2V requirement, see adjustment resistor values on page 4. Not availabe on 1.5 or 6.5 Vdc output models. PROTECTIONS parameter conditions/description min short circuit protection hiccup, continuous, automatic recovery thermal shutdown internal IC junction current limit typ max units 150 °C 1.8 A SAFETY AND COMPLIANCE parameter conditions/description min thermal resistance conducted emissions CISPR22/EN55022 class A (without external circuit) CISPR22/EN55022 class B (external circuit required, see Figure 1-b) rediated emissions CISPR22/EN55022 class A (external circuit required, see Figure 1-b) ESD IEC/EN 61000-4-2, class B, contact ±6KV/ Air ±8KV radiated immunity IEC/EN 61000-4-3, class A, 10V/m EFT/burst IEC/EN 61000-4-4, class B, ±2KV (external circuit required, see Figure 1-a) surge IEC/EN 61000-4-5, class B, ±2KV (external circuit required, see Figure 1-a) conducted immunity IEC/EN 61000-4-6, class A, 3 Vr.ms voltage dips & interruptions IEC/EN 61000-4-29, class B, 0%-70% MTBF as per MIL-HDBK-217F, 25 °C RoHS 2011/65/EU 1,000,000 cui.com typ max units 90 °C/W hours For more information, please visit the product page. CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 01/26/2016 │ page 3 of 6 ENVIRONMENTAL parameter conditions/description min typ max units 100 °C -40 85 °C -55 125 °C case operating temperature opertaing temperature see derating curve storage temperature storage humidity 95 % hand soldering for 10 seconds 260 °C reflow soldering refer to IPC/JEDEC J-STD-020D.1 240 °C max units MECHANICAL parameter conditions/description dimensions 15.24 x 8.30 x 7.25 (0.600 x 0.327 x 0.285) case material Plastic (UL94-V0) min typ mm inches weight 2.3 MECHANICAL DRAWING units: mm [in] pin tolerance: ±0.10 mm [±0.004 in] general tolerance: ±0.25 mm [±0.010 in] PIN CONNECTIONS 1 +Vin 7,9 GND 5 +Vout 6 Vadj 10 On/Off cui.com g For more information, please visit the product page. CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR TYPICAL APPLICATION CIRCUIT DERATING CURVE V7805-1000-SMT 7,9 10 100 6 R1 C1 ON/OFF GND 120 Vo u t 5 1 C4 470pF Output Power (%) Vin C2 R2 GND 1. C1 and C2 are required for best performance and should be fitted close to the converter pins. 2. See the capacitor values for C1 and C2 in the external capacitor table below. These can be increased if required and tantalum or low ESR electrolytic capacitors will also suffice. C1 (Ceramic) C2 (Ceramic) V7801-1000-SMT 10 µF / 25 V 22 µF / 16 V V7801A-1000-SMT 10 µF / 25 V 22 µF / 16 V V7802-1000-SMT 10 µF / 25 V 22 µF / 16 V V7803-1000-SMT 10 µF / 25 V 22 µF / 16 V V7805-1000-SMT 10 µF / 25 V 22 µF / 16 V V7806-1000-SMT 10 µF / 25 V 22 µF / 16 V APPLICATION EXAMPLE C1 DC/DC Converter 7 ,9 5 6 C4 L +Vo u t C2 470pF 22 F Load 1 60 40 Safe Operating Area 20 -40 0 40 71 85 Operating Temperature (°C) EXTERNAL CAPACITOR TABLE MODEL 80 0 3. No parallel connection or plug and play. Vin date 01/26/2016 │ page 4 of 6 GND To reduce output ripple, it is recommended to add a LC filter to the output port. L: Recommended parameter 10 ~ 47μH. cui.com 120 For more information, please visit the product page. CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 01/26/2016 │ page 5 of 6 ADJUSTMENT RESISTOR VALUES MODEL V7801A-1000 V7802-1000 V7803-1000 Vadj (V) R1 (kΩ) R2 (kΩ) R1 (kΩ) R2 (kΩ) 1.5 188.1 - 15.4 1.8 - - 68.6 2.5 - 81.4 - 3.0 - 32.2 - 3.3 - 18.6 - 41.3 3.6 - 9.5 - 20.1 3.9 - - - 4.5 - - 4.9 - - 5.0 - 5.1 - 5.5 6.0 6.5 V7805-1000 R1 (kΩ) R2 (kΩ) R1 (kΩ) R2 (kΩ) - - - - - - 15.4 - - - - 87 - 9.7 - 88.7 339 - 30.5 - - - 48.8 - - 121 75 - 8.0 - 51.0 115 - - - - 16.6 338 - - - - 8.0 1,835 - - - - - 6.5 - - - - - - 5.2 - 426 - - - - - 1.1 - 58.7 - - - - - - - 16.9 - - - - - - - 3.2 The R1, R2 in the above table are used to set the output voltage. If no need to adjust the output voltage, connect a ceramic capacitor to GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent damage to the device. Fine-tune output voltage must appease Vin-Vo>2V. EMC RECOMMENDED CIRCUIT V in FUSE LDM1 LDM2 EUT +Vout +Vin GND MOV GND TVS C0 a C1 b Figure 1 Recommended External Circuit Components FUSE choose according to practical input current MOV 10D560 LDM1 82μH TVS SMCJ36A C0 120μF/50V C1 4.7μF/50V LDM2 33μH Table 1 cui.com Load For more information, please visit the product page. CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 01/26/2016 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 11/23/2011 1.01 V-Infinity branding removed 09/04/2012 1.02 added TR package option 10/31/2012 housing width changed, EMC recommendations updated 01/26/2016 1.03 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.