PSRS-783R3LF PEAK | Alldatasheet
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PME02-Series – PSRS-78xxLF – Switching Regulator – SMD – Plastic Case Specification can change without a notice – We acce pt no liability for any inaccuracy or printing errors. Page 1/4 PSRS-78xxLF All specifications typical at Ta=25° C, nominal input voltage and full load unless otherwise specified Input Specifications Voltage Range Wide Input (See Table) Output Specifications Voltage Accuracy (100% load) ± 2%, typ. Short Circuit Protection Continuous (Hiccup / Automatic Recovery) Line Regulation ± 0.2%, typ. Load Regulation (10% - 100% load) ± 0.3%, typ. Ripple and Noise (20Mhz bandwidth) 25 mV pk-pk, max. Output Current Limit 1.8 A Temperature Coefficient ± 0.02% / ° C General Specifications Dynamic Load Stability (100% <-> 10% load) ± 30 mV, typ. Quiescent current (nom. Input, 3.3 and 5 Vout) 15 mA, typ Thermal Shutdown 160° C Capacitance Load 1000 uF, max. ON/OFF control current ON: open or 1.5<Vc ≤6 OFF: GND or 0V<Vc<1V 2 uA, typ. Shutdown Input Current 30 uA, max. Reliability Calculated MTBF (MIL-HDBK-217F) ≥ 2 Mhrs Physical Specifications Case Material Non Conductive Black Plastic (UL94V-0 rated) Weight ~ 2.3 g, typ. Environment Specifications Operating Temperature -40 to +85° C (ambient) Maximum Case Temperature 100° C Storage Temperature -55 to +125° C Cooling Free Air Convection (10mm distance required) Mainzer Straße 151–153 D-55299 Nackenheim Tel. +49 6135 7026-0 Fax: +49 6135 931070 www.peak-electronics.de peak@peak-electronics.de The PME02-500mA Series with high efficiency switchi ng regulators are ideally supply for space constrained mobile applica tions. They are no need for any heat sinks, even if operate at +85°C. The a dditional features include remote ON/OFF control and adjustable output voltage . Super low ripple and noise of typically only 10mV and a shutdown input c urrent of typically only 15uA. PME02-SERIES /checkbld 500 mA Switching Regulator /checkbld Wide Input /checkbld SMD Plastic Package /checkbld Non-Isolated & Regulated /checkbld Adjustable Output Voltage /checkbld SC Prot. / Thermal Shutdown /checkbld Remote ON/OFF Control Rev.09-2009
PME02-Series – PSRS-78xxLF – Switching Regulator – SMD – Plastic Case Specification can change without a notice – We acce pt no liability for any inaccuracy or printing errors. Page 2/4 Selection Guide Order # In p u t V o lta g e n o m . (V D C ) In p u t V o lta g e R a n g e (V D C ) O u tp u t N o rm a l (V D C ) O u tp u t A d ju s t R a n g e (V D C ) C u rre n t m a x . (m A ) E ffic ie n c y m a x . (% ) PSRS-783R3LF 12 4.5 - 28 3.3 1.8 - 5.5 500 90 PSRS-7805LF 12 6.0 - 28 5 2.5 - 8.0 500 94 PSRS-7812LF 24 14 - 28 12 4.5 - 13.5 500 95 PSRS-7815LF 24 17 - 28 15 4.5 - 15.5 500 96 If you need other specifications, please enquire. Notes:
PME02-Series – PSRS-78xxLF – Switching Regulator – SMD – Plastic Case Specification can change without a notice – We acce pt no liability for any inaccuracy or printing errors. Page 3/4 Package / Pinning / Derating 11.82 (0.47) 8.50 (0.34) 71 85 100% 75% 50% 25% -40 -20 0 20 40 60 80 100 OUTPUTDPOWER AMBIENTDTEMPERATURED(°C) TEMPERATUREDDERATINGDGRAPH # Switching Reg. 1 +Vin 5 +Vout
6 Vadj
7 GND
9 GND
10 ON/OFF
Time (sec.) Temperature ( C)
90 Max
(>220 C) Sec 220 C
10 Max Sec
Peak.Temp 240 C External Capacitor Table Part Number (ceramic cap.) (ceramic cap.) PSRS-783R3LF 10uF/50V 22uF/16V PSRS-7805LF 10uF/50V 22uF/16V PSRS-7812LF 10uF/50V 10uF/25V PSRS-7815LF 10uF/50V 10uF/25V K7805T-500 7,9 5Vin GND Vout 226K/25V 106K/50V C1 610 ON/OFF GND 470pF
100 F µ
- C1,C2: Choose a ceramic type capacitors; C3 is require ,for best performance, use a 100µF or more capacitor please. 2. C1,C2 are require and should be placed close to the pins of the converter, with shortest possible traces. 3. No parallel connection or plug and play. *L: To reduce output ripple, it is recommended to a dd a LC filter to output port. Recommended paramete r: 10µH ~ 47µH. PSRS -7805LF *L
PME02-Series – PSRS-78xxLF – Switching Regulator – SMD – Plastic Case Specification can change without a notice – We acce pt no liability for any inaccuracy or printing errors. Page 4/4 App Notes The ON/OFF pin provides several features for adjusting and sequencing the power supply, a user has the flexibility of using the ON/OFF pin as: 1) A digital on/off control by pulling down the ON/ OFF pin with an open-drain transistor. ON/OFF 2) Line UVLO. If desired to achieve a UVLO voltage, an resistor divider from Vin to ON/OFF to GND can be used to disable the converter until a higher input voltage is achieved. For example, it is not useful for a converter with 12V output to start up with a 12V input voltage, as the output cannot teach regulation. To enable the converter when the input voltage reaches 14V, a 51k Ω/5k Ω resistor divider from Vin to GND can be connected to the ON/OFF pin. Both the precision 1.25V threshold and 150mV hysteresis are multiplied by the resistor ratio, providing a proportional 12% hysteresis for any startup threshold. So, the turn off threshold would be between 12.3V to 15.7V. 7,9 Vin GND +Vout 51K Ω 5K Ω Load 2) Power supply sequencing. By connecting a small c apacitor from ON/OFF to GND, the 2 µA current source and 1.25V threshold can provide a stable and predictable delay between start-up of multiple power supplies. For example, a start-up delay of roughly 64mS is provided using 100nF, and roughly 136mS by using 200nF. 7,9 Vin GND +Vout
1 DC/DC
7,9 Vin GND +Vout Delay time: 64mS Delay time: 136mS Part # Vout (nominal) Vout adjust up R2 (kOhm) Vout adjust down R1 (kOhm) PSRS-783R3LF 3.3 PSRS-7805LF 5 PSRS-7812LF 12 PSRS-7815LF 15 The R1, R2 which choose from the table 1 equation are used to set th e output voltage. Select the R1 or R2 resistor to provide the desired regulation voltage. R1 is used to set the output voltage to lower, R2 is used to set the output voltage to higher. If no need to adjust the outp ut voltage, please connect a ceramic capacitor to GND with 470pF typical value. Insure the o utput voltage is in the adjust range. 3.3 *10 10 .75 Vout Vout *10 52 .91 Vout Vout *20 02 .287 Vout Vout *15 37 .269 Vout Vout Vout Vout 3.3 10 .75 *61 Vout Vout 52 .91 *61 Vout Vout 02 .287 *71 Vout Vout 37 .269 *66