Adjustable Precision Shunt Regulator. Features. Application. - Ref

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Dorthy French
5 years ago
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1 escription The is a low voltage three terminal adjustable shunt regulator with a guaranteed thermal stability over applicable temperature ranges. The output voltage can be set to any value between V R (approximately.5 V) to 8V with two external resistors. This device has a typical output impedance of.ω. ctive output circuitry provides a very sharp turn on characteristic, making this device excellent replacement for Zener diodes in many applications. The is characterized for operation from o to 5 o, and five package options (SOT--, SOT--5, SOP-8, TO-9 and SOT-89) allow the designer the opportunity to select the proper package for their applications. eatures ow voltage operation (.5V) djustable output voltage V = V R to 8V Wide operating current range µ to m ow dynamic output impedance.ω (Typ.). Trimmed bandgap design up to +.5%. S rating is 5.5V(Per MI-ST-88) pplication inear Regulators djustable Supplies Switching Power Supplies attery Operated omputers Instrumentation omputer isk rives lock iagram Symbol iagram Ref + - Ref

2 Pin onfiguration SOT-- S59- SOT-- (Order as S) SOT--5 N 5 N 4 SOP-8 TO-9 SOT-89 8 N N Marking Information Package Marking Production Year ode Production Week ode SOT-- W S59- S4W SOT--5 W Starting with S, a bar on top of S is for production year, and underlined S is for year. The next character is marked on top for, and underlined for 4. The naming pattern continues with consecutive characters for later years. -Z: -6 a-z: 7-5 SOP-8 YYWW WW is the week of SOT-89 YYWW YY is the year of production. 4 means the product is manufactured in year of 4. production. 6 means the product is manufactured in TO-9 YYWW the 6 th week.

3 bsolute Maximum Ratings Parameter Symbol Maximum Units Voltage V 8 V ontinuous urrent I 5 m urrent I R m Operating unction Temperature Range T 5 Storage Temperature Range T ST -65 to 5 (SOT-89) (SOT--) Thermal Resistance θ (SOT--5) /W 5 (SOP-8) (TO-9) ead Temperature (Soldering) seconds T 6 lectrical haracteristics PRMTR SYMO TST IRUIT TST ONITIONS MIN TYP MX UNIT Voltage.5% % V R V = V R, I = m mv % eviation of reference voltage over full temperature range V I(dev) V = V R, I = m T = to mv Ratio of change in reference voltage to the change in cathode V R I = m, mv/v voltage V V = V - V R current I R I = m, R=kΩ, R = -- 4 µ eviation of current over full temperature range I I(dev) I = m, R=kΩ, R =, T = to µ Minimum cathode current for regulation I MIN V = V R --. m Off-state cathode current I O V = 8V, V R = --. µ ynamic impedance Z I = m to m, V = V R, f k Z Ω

4 Typical Performance haracteristics urrent VS Voltage urrent VS Voltage urrent (m) V = T = 5 urrent (u) V = T = Voltage (V) Voltage (V) Voltage VS unction Temperature urrent VS unction Temperature Voltage (mv) V = T = unction Temperature () unction Temperature () V = T = 5o - - urrent (u) 4

5 Test ircuits Input V Input V Input V I I I off R Iref R R V = (+ ) + Iref x R R Test ircuit : V = V R Test ircuit : V > V R Test ircuit : Off State urrent pplication iagram V IN R VOUT R R VOUT= (+ R ) R N Thermal onsideration Package Power Rating (T =5 ) Power Rating (T =5 ) Power Rating (T =7 ) SOT-- (θ = /W) 45mW 6mW 9mW SOT--5 (θ = /W) 45mW 6mW 9mW TO-9 (θ = /W) 455mW 4mW 5mW. Maximum junction temperature is 5. θ is measured with packages mounted onboard under still-air condition with W power applied.. Power rating is calculated using P = (T T ) /θ, where T denotes junction temperature and T denotes ambient temperature. 5

6 OUTIN RWIN SOT-- IMNSIONS IM N INS MM MIN MX MIN MX OUTIN RWIN SOT--5 IMNSIONS IM N INS MM MIN MX MIN MX OUTIN RWIN SOP IMNSIONS IM N INS MM MIN MX MIN MX S.7 S

7 OUTIN RWIN TO-9 IMNSIONS IM N INS MM MIN MX MIN MX OUTIN RWIN S59- Q e S 59- IMNSIONS IM N IN MM MIN MX MIN MX e e.7r.r.95r.9r Q OUTIN RWIN SOT-89 IMNSIONS SOT-89 IM N INS MM MIN MX MIN MX M I.8R.59R.R.5R I M TYP.8R TYP.7R 7

TS mA Low Dropout Positive Voltage Regulator

TS mA Low Dropout Positive Voltage Regulator TS1117 800m Low ropout Positive Voltage Regulator TO-263 Low ropout Voltage 1.3V max. eneral escription Pin assignment: 1. round / dj 2. Output 3. nput The TS1117 Series are high performance positive voltage