FIXED 2.5 AND 5 VOLT 3-TERMINAL VOLTAGE REFERENCES ISSUE 4 - MARCH 1998 Plese Use ZMR Series ZTR25 ZTR5 DEVICE DESCRIPTION The ZTR25 nd ZTR5 re precision three terminl references. These devices re idel for ttery powered pplictions where power sving is importnt. They offer low power lterntives to other two terminl shunt references. The ZTR devices do not require n externl resistor nd, in contrst to two terminl references, wste none of the ttery power s lod current vries. The ZTR only consumes 3 supply current. The two devices require s low s 1.4 volts etween input nd output for regultion. Output voltge tolernce is ± 2.5%, with voltge vrition of.275mv/ C over the -55 C to 125 C operting rnge. FEATURES Smll outline SOT23 nd SOT89 pckges TO92 pckge 2.5V nd 5V output 2.5% tolernce Supply current independent of input voltge over temperture Output current up to 5mA Very low supply current (3) Unconditionlly stle Internl short circuit current limit APPLICATIONS Bttery Powered Systems Portle nd Hnd Held Equipment Instrumenttion Metering SCHEMATIC DIAGRAM Vin Vout Gnd 4-388
ABSOLUTE MAXIMUM RATINGS Input Voltge 2V Output current (I O) 2mA Operting temperture -55 to 125 C Storge temperture -65 to 15 C Note: 1. The mximum operting input voltge nd output current of the device will e governed y the mximum power dissiption of the selected pckge. Mximum pckge power dissiption is specified t 25 C nd must e linerly derted to zero t T m=125 C. 2. The following dt represents pulse test conditions with junction tempertures s indicted t the initition of the test. Continuous opertion of the devices with the stted conditions might exceed the power dissiption limits of the chosen pckge. 3. This device does not contin therml shutdown circuit so cre should e tken not to exceed the stted mximum power dissiption rting.mximum power dissiption, for the SOT23 nd SOT89 pckges, is clculted ssuming tht the device is mounted on cermic sustrte mesuring 15 x 15 x.6mm. ZTR25 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stted):t j =25 C, I O =1mA, V in =6.5V SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS V O Output Voltge 2.438 2.5 2.563 V I O = to 5mA V in =4.5 to 2V I O = to 5mA 2.36 2.64 V 2.36 2.64 V V O Line Regultion V in =4.5 to 2V 5 15 mv V O Lod Regultion I O = to 5mA I O = to 1mA 2 12 3 mv mv l s Supply Current 3 4 l s Supply Current Chnge I O = to 5mA V in =4.5 to 2V V n Output Noise Voltge f=1hz to 1kHz 65 µv (rms) V in / V O Ripple Rejection V in =6.3 to 18V f=12hz 55 75 db V in Input Voltge Required To Mintin Regultion 4.2 3.9 V V O / T Averge Temperture Coefficient of V O Plese Use ZMR Series 1 2 ZTR25 ZTR5 Power Dissiption (Tm= 25 C, Tjmx=15 C) SOT23 5mW TO92 6mW SOT89 1.5W ±1 1 I O =5.mA.275.7 mv/ C 4-389
ZTR25 ZTR5 Plese Use ZMR Series ZTR5 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stted):t j =25 C, I O =1mA, V in =1V SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS V O Output Voltge 4.875 5 5.125 V I O = to 5mA V in =7 to 2V I O = to 5mA 4.78 5.16 V 4.78 5.175 V V O Line Regultion V in =7 to 2V 5 15 mv V O Lod Regultion I O = to 5mA I O = to 1mA 25 15 4 mv mv l s Supply Current 5 7 l s Supply Current Chnge I O = to 5mA V in =7 to 2V V n Output Noise Voltge f=1hz to 1kHz 9 µv (rms) V in / V O Ripple Rejection V in =8 to 18V f=12hz V in V O / T 1 2 55 72 ±1 1 Input Voltge Required To Mintin Regultion 7 6.7 V Averge Temperture Coefficient of V O db I O =5.mA.275.7 mv/ C 4-39
Plese Use ZMR Series ZTR25 ZTR5 TYPICAL CHARACTERISTICS =ZTR25: =ZTR5 Output Voltge 5.2 5. 4.98 4.96 2.52 2.5 2.48 Io=5mA Io=5mA 6 5 4 3 2 Io=1mA 2.46 1-5 -25 25 5 75 1 125 Temperture ( C) Output Voltge Temperture 2 4 6 8 1 12 14 16 18 2 Input Voltge (V) Supply Current v Voltge 6 34 32 3 28 Io= 56 52 48 44 Io= 26-5 -25 25 5 75 1 125 Temperture ( C) Supply Current v Temperture 4-5 -25 25 5 75 1 125 Temperture ( C) Supply Current v Temperture 5 49 48 47 3 29 28 27 Io= Io=.1 1 1 1 Output Current Supply Current v Output Current Drop-Out Voltge (V) 2.5 Io=1mA 2. 1.5 1..5-5 -25 25 5 75 1 125 Temperture ( C) Drop-Out Voltge v Temperture 4-391
Output Impednce (Ohms) ZTR25 ZTR5 1 1..1 Plese Use ZMR Series TYPICAL CHARACTERISTICS I O= 1mA I o= 2mA V IN= V OUT+ 4V Ripple Rejection (db) 9 8 7 6 5 4 3 2 1 =ZTR25: =ZTR5 Io = 1mA.1 1 1K 1K 1K Frequency (Hz) Output Impednce v Frequency 1 1 1K 1K 1K Ripple Frequency (Hz) Ripple Rejection v Ripple Frequency Output Voltge Devition (V).4 Lod Current COUT= VIN=Vo+4 dio/dt=1a/µs 5mA ma.4 -.4 Output Voltge Devition (V).4 Vin 5V V COUT= VIN=Vo+4 dvin/dt=5v/µs.4 -.4 -.4 2 4 6 8 1 Time (µs) Lod Trnsient Response -.4 1 2 3 4 5 Time (µs) Line Trnsient Response 2 Surfce Mount Devices 8 TO92 Through Hole Device (mw) Power Dissiption 1 SOT89 SOT23 (mw) Power Dissiption 6 4 2-5 -25 25 5 75 1 125-5 -25 25 5 75 1 125 Temperture ( C) Power Derting Temperture ( C) Power Derting 4-392
Plese Use ZMR Series ZTR25 ZTR5 CONNECTION DIAGRAMS SOT23 Pckge Suffix F TO92 Pckge Suffix C Top View Bottom View SOT89 Pckge Suffix Z Top View ORDERING INFORMATION Prt Numer Tol % Pckge Prt Mrk ZTR25C2 2.5 TO92 ZTR252 ZTR25F2 2.5 SOT23 25U ZTR25Z2 2.5 SOT89 25U ZTR5C2 2.5 TO92 ZTR52 ZTR5F2 2.5 SOT23 5N ZTR5Z2 2.5 SOT89 5N 4-393