S812C SII | Alldatasheet

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Rev.1.0 Seiko Instruments Inc. 1 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series The S-812C series is a family of high-voltage positive regulators developed using CMOS technology. The maximum operating voltage of 16V makes the S-812C series best in high-voltage applications. Not only current consumption is small but also power-off function is included, the regulator is also suitable in constructing low- power portable devices. Combination of power-off function and short-current protection can be selected. „ Features

  • Low current consumption
  • Output voltage: 2.0 to 6.0 V (0.1 V step)
  • Output voltage accuracy: ±2.0%
  • Output current: 50mA capable (3.0 V output product, VIN=5 V) Note1 75mA capable (5.0 V output product, VIN=7 V) Note1
  • Dropout voltage Typ. 120 mV (VOUT = 5.0 V, IOUT = 10 mA)
  • Power-off function: Polarity for power-off switch or removal of the power-off function can be selected.
  • Short-circuit protection: Product with/without short-circuit protection is available. Short-circuited current : 40 mA typ. for products with protection
  • Packages: SOT-23-5 (Package drawing code : MP005-A) SOT-89-5 (Package drawing code : UP003-A) SOT-89-3 (Package drawing code : UP005-A) TO-92 (Package drawing code : YF003-A) Note1 Power dissipation of the package should be taken into account when the output current is large. „ Block Diagram (1) Product without power-off function (2) Product with power-off function VSS VOUTVIN (2) (1) (1) : Parasitic diode (2) : In case of a product with short-circuit protection Short-circuit protection Reference voltage VSS VOUT ON/OFF VIN (2) (1) (1) : Parasitic diode (2) : In case of a product with short-circuit protection Short-circuit protection Reference voltage Figure 1 Block Diagram „ Applications
  • Power source for battery-powered devices
  • Power source for personal communication devices
  • Power source for home electric/electronic appliances

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 2 Seiko Instruments Inc. „ Absolute Maximum Ratings Table 1 (Ta=25 °C unless otherwise specified) Item Symbol Absolute Maximum Rating Units Input voltage V IN 18 V VON/OFF VSS -0.3 to 18 V Output voltage V OUT VSS -0.3 to VIN+0.3 V Power dissipation P D 250(SOT-23-5),500 (SOT-89-5) mW Operating temperature range T opr -40 to +85 °C Storage temperature range T stg -40 to +125 °C Note: Although the IC contains protection circuit against static electricity, excessive static electricity or voltage which exceeds the limit of the protection circuit should not be applied to. „ Selection Guide Product Name S-812C xx Axx - xxx - T2 IC orientation for taping specifications Package code MC: SOT-23-5 UA: SOT-89-3 UC: SOT-89-5 Y : TO-92 WI: WAFER Product code Function A: No short-circuit protection and no power-off function B: Short-circuit protection and power-off function ON/OFF pin; Positive logic Output voltage x 10 Table 2.1 Selection Guide S-812CxxB series (Short-circuit protection and power-off fuction) Output Voltage SOT-23-5 SOT-89-5 2.0 V ± 2.0% −− 3.0 V ± 2.0% S-812C30BMC-C4K-T2 − 3.3 V ± 2.0% −− 3.5 V ± 2.0% −− 3.8 V ± 2.0% −− 4.0 V ± 2.0% −− 5.0 V ± 2.0% S-812C50BMC-C5E-T2 − Please contact our sales office for products with an output voltage not listed above.

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 3 Table 2.2 S-812CxxA series (No short-circuit protection and no power-off function) Output voltage SOT-23-5 SOT-89-3 TO-92* SOT-89-5 2.0 V± 2.0% S-812C20AMC-C2A-T2 S-812C20AUA-C2A-T2 S-812C20AY-X  2.1 V± 2.0% S-812C21AMC-C2B-T2 S-812C21AUA-C2B-T2 S-812C21AY-X  2.2 V± 2.0% S-812C22AMC-C2C-T2 S-812C22AUA-C2C-T2 S-812C22AY-X  2.3 V± 2.0% S-812C23AMC-C2D-T2 S-812C23AUA-C2D-T2 S-812C23AY-X  2.4 V± 2.0% S-812C24AMC-C2E-T2 S-812C24AUA-C2E-T2 S-812C24AY-X  2.5 V± 2.0% S-812C25AMC-C2F-T2 S-812C25AUA-C2F-T2 S-812C25AY-X  2.6 V± 2.0% S-812C26AMC-C2G-T2 S-812C26AUA-C2G-T2 S-812C26AY-X  2.7 V± 2.0% S-812C27AMC-C2H-T2 S-812C27AUA-C2H-T2 S-812C27AY-X  2.8 V± 2.0% S-812C28AMC-C2I-T2 S-812C28AUA-C2I-T2 S-812C28AY-X  2.9 V± 2.0% S-812C29AMC-C2J-T2 S-812C29AUA-C2J-T2 S-812C29AY-X  3.0 V± 2.0% S-812C30AMC-C2K-T2 S-812C30UA-C2K-T2 S-812C30AY-X  3.1 V± 2.0% S-812C31AMC-C2L-T2 S-812C31AUA-C2L-T2 S-812C31AY-X  3.2 V± 2.0% S-812C32AMC-C2M-T2 S-812C32AUA-C2M-T2 S-812C32AY-X  3.3 V± 2.0% S-812C33AMC-C2N-T2 S-812C33AUA-C2N-T2 S-812C33AY-X  3.4 V± 2.0% S-812C34AMC-C2O-T2 S-812C34AUA-C2O-T2 S-812C34AY-X  3.5 V± 2.0% S-812C35AMC-C2P-T2 S-812C35AUA-C2P-T2 S-812C35AY-X  3.6 V± 2.0% S-812C36AMC-C2Q-T2 S-812C36AUA-C2Q-T2 S-812C36AY-X  3.7 V± 2.0% S-812C37AMC-C2R-T2 S-812C37AUA-C2R-T2 S-812C37AY-X  3.8 V± 2.0% S-812C38AMC-C2S-T2 S-812C38AUA-C2S-T2 S-812C38AY-X  3.9 V± 2.0% S-812C39AMC-C2T-T2 S-812C39AUA-C2T-T2 S-812C39AY-X  4.0 V± 2.0% S-812C40AMC-C2U-T2 S-812C40AUA-C2U-T2 S-812C40AY-X  4.1 V± 2.0% S-812C41AMC-C2V-T2 S-812C41AUA-C2V-T2 S-812C41AY-X  4.2 V± 2.0% S-812C42AMC-C2W-T2 S-812C42AUA-C2W-T2 S-812C42AY-X  4.3 V± 2.0% S-812C43AMC-C2X-T2 S-812C43AUA-C2X-T2 S-812C43AY-X  4.4 V± 2.0% S-812C44AMC-C2Y-T2 S-812C44AUA-C2Y-T2 S-812C44AY-X  4.5 V± 2.0% S-812C45AMC-C2Z-T2 S-812C45AUA-C2Z-T2 S-812C45AY-X  4.6 V± 2.0% S-812C46AMC-C3A-T2 S-812C46AUA-C3A-T2 S-812C46AY-X  4.7 V± 2.0% S-812C47AMC-C3B-T2 S-812C47AUA-C3B-T2 S-812C47AY-X  4.8 V± 2.0% S-812C48AMC-C3C-T2 S-812C48AUA-C3C-T2 S-812C48AY-X  4.9 V± 2.0% S-812C49AMC-C3D-T2 S-812C49AUA-C3D-T2 S-812C49AY-X  5.0 V± 2.0% S-812C50AMC-C3E-T2 S-812C50AUA-C3E-T2 S-812C50AY-X  5.1 V± 2.0% S-812C51AMC-C3F-T2 S-812C51AUA-C3F-T2 S-812C51AY-X  5.2 V± 2.0% S-812C52AMC-C3G-T2 S-812C52AUA-C3G-T2 S-812C52AY-X  5.3 V± 2.0% S-812C53AMC-C3H-T2 S-812C53AUA-C3H-T2 S-812C53AY-X  5.4 V± 2.0% S-812C54AMC-C3I-T2 S-812C54AUA-C3I-T2 S-812C54AY-X  5.5 V± 2.0% S-812C55AMC-C3J-T2 S-812C55AUA-C3J-T2 S-812C55AY-X  5.6 V± 2.0% S-812C56AMC-C3K-T2 S-812C56AUA-C3K-T2 S-812C56AY-X  5.7 V± 2.0%  S-812C57AUA-C3L-T2 S-812C57AY-X  5.8 V± 2.0%  S-812C58AUA-C3M-T2 S-812C58AY-X  5.9 V± 2.0%  S-812C59AUA-C3N-T2 S-812C59AY-X  6.0 V± 2.0%  S-812C60AUA-C3O-T2 S-812C60AY-X  *: X changes according to the packing form in TO-92. Standard forms are B; Bulk and Z; Zigzag (tape and ammo). If tape and reel (T) is needed, please contact SII sales office.

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 4 Seiko Instruments Inc. „ Pin Configuration For details of package, refer to the attached drawing. Table 3 Pin Assignment 1 23 SOT-23-5 Top view Figure 2 Table 4 Pin Assignment 13 2 SOT-89-5 Top view Figure 3 Table 5 Pin Assignment SOT-89-3 Top view Figure 4 Table 6 Pin Assignment TO-92 Bottom view 13 2 Figure 5 Pin No. Symbol Description

1 VSS GND pin

3 VOUT Output voltage pin

4 N.C. (1)

5 ON/OFF ON/OFF pin

N.C. (1)  Pin No. Symbol Description

1 VOUT Output voltage pin

2 VIN Input voltage pin

3 VSS GND pin

4 ON/OFF. ON/OFF pin N.C. (1)  5 N.C. (1)  Pin No. Symbol Description Pin No. Symbol Description VIN or VSS. The ON/OFF pin becomes N.C. pin, when the power-off function is removed. VIN or VSS. The ON/OFF pin becomes N.C. pin, when the power-off function is removed.

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 5 „ Electrical Characteristics 1. S-812C Series Table 7 Electrical Characteristics (Ta=25°C unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Units Test circuits Output voltage 1) VOUT (E) VIN=V OUT (S)+2V, IOUT =10mA V OUT (S)× 0.98 VOUT (S) VOUT (S) × 1.02 Output current 2) IOUT VOUT (S)+2V2.0V ≤ VOUT (S) ≤ 2.9V 30 −− mA 3 ≤ VIN≤16V 3.0V ≤ VOUT (S) ≤ 3.9V 50 −− mA 3 4.0V ≤ VOUT (S) ≤ 4.9V 65 −− mA 3 5.0V ≤ VOUT (S) ≤ 5.9V 75 −− mA 3 Dropout voltage 3) Vdrop I OUT = 2.0V ≤ VOUT (S) ≤ 2.4V − 0.46 0.95 V 1 10mA 2.5V ≤ VOUT (S) ≤ 2.9V − 0.32 0.68 V 1 3.0V ≤ VOUT (S) ≤ 3.4V − 0.23 0.41 V 1 3.5V ≤ VOUT (S) ≤ 3.9V − 0.19 0.35 V 1 4.0V ≤ VOUT (S) ≤ 4.4V − 0.16 0.30 V 1 4.5V ≤ VOUT (S) ≤ 4.9V − 0.14 0.27 V 1 5.0V ≤ VOUT (S) ≤ 5.4V − 0.12 0.25 V 1 5.5V ≤ VOUT (S) ≤ 6.0V − 0.11 0.23 V 1 Line regulation 1 Δ VOUT 11 VOUT (S) + 1 V ≤ VIN ≤ 16 V, IOUT = 1mA − 52 0 m V 1 Line regulation 2 Δ VOUT 21 VOUT (S) + 1 V ≤ VIN ≤ 16 V, IOUT = 1µA − 52 0 m V 1 Load regulation Δ VOUT 31 VIN= VOUT (S)+ 2 V 2.0V ≤ VOUT (S) ≤ 2.9V, 1µA ≤ IOUT ≤ 20mA − 63 0 m V 1 3.0V ≤ VOUT (S) ≤ 3.9V, 1µA ≤ IOUT ≤ 30mA − 10 45 mV 1 4.0V ≤ VOUT (S) ≤ 4.9V, 1µA ≤ IOUT ≤ 40mA − 13 65 mV 1 5.0V ≤ VOUT (S) ≤ 5.9V, 1µA ≤ IOUT ≤ 50mA − 17 80 mV 1 Output voltage temperature coefficient 4) ΔVOUT 1 ΔTa • VOUT VIN = VOUT (S) + 1 V, IOUT = 10mA -40°C ≤ Ta ≤ 85°C ±100 − ppm /°C Current consumption I SS VIN = 2.0V ≤ VOUT (S) ≤ 2.7V − 0.9 1.6 µA2 VOUT (S)+2V,2.8V ≤ VOUT (S) ≤ 3.7V 1.0 1.8 µA2 no load 3.8V ≤ VOUT (S) ≤ 5.1V 1.2 2.1 µA2 5.2V ≤ VOUT (S) ≤ 6.0V 1.5 2.5 µA2 Input voltage V IN −− 16 V 1 Applied to products with Power-off Function Current consumption at power- off ISS 2V IN = VOUT (S) + 2V, VON/OFF = 0V, no load − 0.1 0.5 µA2 ON/OFF pin Input voltage for high level VSH VIN = VOUT (S) + 2V, RL = 1kχ, judged by VOUT output level 2.0 −− V4 ON/OFF pin Input voltage for low level VSL VIN = VOUT (S) + 2V, RL = 1kΩ , judged by VOUT output level −− 0.4 V 4 ON/OFF pin Input current at high level ISH VIN=V OUT (S) + 2V, VON/OFF = 7V −− 0.1 µA4 ON/OFF pin Input current at low level ISL VIN=V OUT (S) + 2V, VON/OFF = 0V −− -0.1 µA4 Applied to products with Short-circuit Protection Short-circuit current I OS VIN = VOUT (S) + 2 V, VOUT pin = 0 V − 40 − mA 3 1) V OUT (S)=Specified output voltage VOUT (E)=Effective output voltage, i.e., the output voltage when fixing IOUT (=10 mA) and inputting VOUT (S)+2.0 V. 2) Output current at which output voltage becomes 95% of VOUT (E) after gradually increasing output current. 3) Vdrop = VIN1-(VOUT (E) × 0.98), where VIN1 is the Input voltage at which output voltage becomes 98% of VOUT (E) after gradually decreasing input voltage. 4) Temperature change ratio for the output voltage [mV/°C] is calculated using the following equation. [] [ ] []Δ Δ Δ Δ V Ta mV/ C V (S) V V Ta V ppm/ C 1000 OUT OUT OUT OUT °= × • °÷ Specified output voltageOutput voltage temperature coefficientTemperature change ratio for output voltage

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 7 5. Dropout voltage (Vdrop) This parameter indicates the difference between the input voltage (VIN1) and the output voltage when output voltage falls to 98 % of VOUT (E) by gradually decreasing the input voltage (VIN). Vdrop = VIN1-[VOUT (E) × 0.98] 6. Temperature coefficient of output voltage [ΔVOUT /(ΔTa • VOUT )] The output voltage lies in the shaded area in the whole operating temperature shown in figure 8 when the temperature coefficient of the output voltage is ±100 ppm/°C. -40 25 +0.30mV/°C VOUT [V] VOUT (E) is a measured value of output voltage at 25°C. VOUT (E)

85 Ta [°C]

-0.30mV/°C Figure 8 Example for the S-812C30A Temperature change ratio for output voltage [mV/°C] is calculated by using the following equation. [] [ ] []Δ Δ Δ Δ V Ta mV/ C V (S) V V Ta V ppm/ C 1000 OUT OUT OUT OUT °= × • °÷ „ Description of Operation 1. Basic operation Figure 9 shows the block diagram of the S-812C series. The error amplifier compares a reference voltage V ref with a part of the output voltage divided by the feedback resistors Rs and Rf, and supplies the gate voltage to the output transistor, necessary to ensure certain output voltage independent from change of input voltage and temperature. 2. Output transistor The S-812C Series uses a Pch MOS transistor as the output transistor. The voltage at VOUT must not exceed VIN+0.3V. When the VOUT voltage becomes higher than that of VIN, reverse current flows and may break the regulator since a parasitic diode between VOUT and VIN exists inevitably. Reference voltage VOUT * : Parasitic diodeVSS VIN Rs Rf Figure 9 Block Diagram Error amplifier Current source Vref Specified output voltage Output voltage temperature coefficientTemperatures change ratio for output voltage

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 8 Seiko Instruments Inc. 3. Power-off function (ON/OFF pin) The ON/OFF pin controls the start and stop of the regulation operation. When the ON/OFF pin is set to power-off level, halting whole internal circuit and turning off the Pch MOSFET between VIN and VOUT, current consumption is drastically reduced. The voltage of the VOUT pin becomes VSS level due to the internal resistance divider of several MΩ between VOUT and VSS. The ON/OFF pin should not be left afloat since no pull-up nor pull-down is made internally as shown in figure 10. Note that the current consumption increases if a voltage between 0.3V and VIN-0.3V is applied to the ON/OFF pin. When the power-off function is not used, connect the pin to the VIN pin in case of positive logic and to the VSS pin in case of negative logic. Table 8 Power-off function Product type ON/OFF pin Internal circuit VOUT pin voltage Current consumption B “H” : Power on Operate Set value I ss B “L” : Power off Halt V SS level I ss2 When a regulation operation at light load less than 100uA is halted, output voltage may increase. If the increase of the output voltage should be avoided, pull down the VOUT pin to the VSS level as soon as ON/OFF pin goes to the power-down level. 4. Short-circuit protection Installation of the short-circuit protection which protects the output transistor against short-circuit between VOUT and VSS can be selected in the S-812C series. The short-circuit protection controls output current as shown in the typical characteristics, (1) OUTPUT VOLTAGE versus OUTPUT CURRENT, and suppresses output current at about 40 mA even if VOUT and VSS pins are short-circuited. The short-circuit protection can not at the same time be a thermal protection. Attention should be paid to the Input voltage and the load current under the actual condition so as not to exceed the power dissipation of the package including the case for short-circuit. When the output current is large and the difference between input and output voltage is large even if not shorted, the short-circuit protection may work and the output current is suppressed to the specified value. Products without short-circuit protection can provide comparatively large current by removing a short-circuit protection. „ Selection of External Components Output Capacitor (CL) The S-812C series can provide stable operation without output capacitor (CL) since the regulator has an internal phase compensation circuit to stabilize operation when the load changes. The transient response of the regulator, however, changes with the output capacitor and the magnitude of overshoot and undershoot on output voltage accordingly changes. Please refer to C L dependence data in “Transient Response Characteristics” to select suitable value for the capacitor. . When a tantalum or an aluminum electrolytic capacitor is used, the ESR of the capacitor shall be 10Ω or less. When an aluminum electrolytic capacitor is used attention should be especially paid to since the ESR of the aluminum electrolytic capacitor increases at low temperature and possibility of oscillation becomes large. Sufficient evaluation including temperature characteristics is indispensable. VIN ON/OFF VSS Figure 10

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 10 Seiko Instruments Inc. Capacitor C1 has an effect in minimizing output fluctuation due to power-on, power line variation and load variation. Determine the optimum value in the actual device. It is not also recommended to attach a capacitor between the S-812 power source VIN and VSS pins or between output VOUT and VSS pins because output fluctuation or oscillation at powering on might occur. „ Notice

  • Wiring patterns for VIN, VOUT and GND pins should be designed to hold low impedance. When mounting an output capacitor, the distance from the capacitor to the VOUT pin and to the VSS pin should be as short as possible.
  • Note that output voltage may increase when a voltage regulator is used at low load current (less than 1 µA).
  • At low load current less than 100µA output voltage may increase when the regulating operation is halted by the ON/OFF pin.
  • To prevent oscillation, it is recommended to use the external components under the following conditions: Equivalent Series Resistance (ESR): 10 Ω or less when an output capacitor is used. Input series resistance (RIN): 10 Ω or less
  • A voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor is small or not connected.
  • The application condition for input voltage and load current should not exceed the package power dissipation.
  • SII claims no responsibility for any and all disputes arising out of or in connection with any infringement of the products including this IC upon patents owned by a third party. GND VOUT1 R1ON/OFF VOUTVINVIN C L C IN VSS Figure 13 Voltage Adjustment Circuit S-812C Series

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 11 „ Typical Characteristics (1) Output Voltage vs Output Current (When load current increases) 0.0 0.5 1.0 1.5 2.0 2.5 0 50 100 150 IOUT (mA) VOUT (V) VIN=2.5V S-812C20B (Ta=25°C) Short- circuit protection 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 50 100 150 200 IOUT (mA) VOUT (V) VIN=3.5V S-812C30B (Ta=25°C) Short-circuit protection 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 100 200 300 IOUT (mA) VOUT (V) VIN=5.5V 10V S-812C50B (Ta=25°C) Short-circuit protection VOUT (V) No short-circuit protectionS-812C20A (Ta=25ºC) 0.0 0.5 1.0 1.5 2.0 2.5 0 100 200 300 IOUT (mA) 5V4V 2.5V VIN=2.3V VOUT (V) S-812C30A (Ta=25ºC) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 100 200 300 400 IOUT (mA) 6V5V4V 3.5V VIN=3.3V No short-circuit protection VOUT (V) S-812C50A (Ta=25ºC) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 100 200 300 400 IOUT (mA) 10V 7V6V 5.5V VIN=5.3V No short-circuit protection Notice The condition for input voltage and load current should not exceed the package power dissipation. Notice The condition for input voltage and load current should not exceed the package power dissipation.

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 12 Seiko Instruments Inc. (2) Maximum Output Current vs Input Voltage IOUTMAX (mA) 100 120 140 048 1 2 1 6 VIN (V) Ta=-40°C S-812C20B Short-circuit protection 25°C 85°C IOUTMAX (mA) 100 150 200 048 1 2 1 6 VIN (V) Ta=-40°C S-812C30B Short-circuit protection 25°C 85°C IOUTMAX (mA) 100 150 200 250 300 048 1 2 1 6 VIN (V) Ta=-40°C S-812C50B Short-circuit protection 25°C 85°C IOUTMAX (mA) S-812C20A 100 120 140 048 1 2 1 6 VIN (V) 85ºC Ta=-40ºC 25ºC No short-circuit protection IOUTMAX (mA) S-812C30A 100 150 200 048 1 2 1 6 VIN (V) 85ºC Ta=−40ºC 25ºC No short-circuit protection IOUTMAX (mA) No short-circuit protectionS-812C50A 100 150 200 250 300 048 1 2 1 6 VIN(V) 85ºC Ta=-40ºC 25ºC Notice The condition for input voltage and load current should not exceed the package power dissipation. Notice The condition for input voltage and load current should not exceed the package power dissipation.

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 13 (3) Output Voltage vs Input Voltage 1.90 1.95 2.00 2.05 2.10 1 . 522 . 533 . 54 V IN (V) VOUT (V) IOUT =-1µA -1m A -10mA S-812C20B -20mA -50mA 2.85 2.90 2.95 3.00 3.05 3.10 3.15 2.5 3 3.5 4 4.5 5 V IN (V) VOUT (V) -1m A -10mA S-812C30B -20mA -50mA IOUT =-1µA 4.75 4.85 4.95 5.05 5.15 5.25 4 . 555 . 566 . 57 V IN (V) VOUT (V) IOUT =-1µA -1mA -10mA S-812C50B -20mA -50mA (4) Dropout Voltage vs Output Current 500 1000 1500 2000 0 1 02 03 04 05 0 IOUT (mA) Vdrop (mV) Ta=-40°C S-812C20B 25°C 85°C 200 400 600 800 1000 1200 1400 1600 0 1 02 03 04 05 0 IOUT (mA) Vdrop (mV) Ta=-40°C S-812C30B 25°C 85°C 100 200 300 400 500 600 700 800 900 1000 0 1 02 03 04 05 0 IOUT (mA) Vdrop (mV) Ta=-40°C S-812C50B 25°C 85°C

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 14 Seiko Instruments Inc. (5) Output Voltage vs Ambient Temperature 1.96 1.98 2.00 2.02 2.04 -50 0 50 100 Ta (°C) VOUT (V) S-812C20B 2.94 2.97 3.00 3.03 3.06 -50 0 50 100 Ta (°C) VOUT (V) S-812C30B 4.90 4.95 5.00 5.05 5.10 -50 0 50 100 Ta (°C) VOUT (V) S-812C50B (6) Line Regulation 1 vs Ambient Temperature (7) Line Regulation 2 vs Ambient Temperature -50 0 50 100 Ta (°C) ΔVOUT1 (mV) S-812C20B S-812C30BS-812C50B -50 0 50 100 Ta (°C) ΔVOUT2 (mV) S-812C20B S-812C30BS-812C50B (8) Load Regulation vs Ambient Temperature -50 0 50 100 Ta (°C) ΔVOUT3 (mV) S-812C20B S-812C30B S-812C50B

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 15 (9) Current Consumption vs Input Voltage 0.0 0.5 1.0 1.5 2.0 2.5 0 4 8 12 16 V IN (V) ISS (µA) S-812C20B 25°C 85°C Ta=-40°C 0.0 0.5 1.0 1.5 2.0 2.5 0 4 8 12 16 V IN (V) ISS (µA) S-812C30B 25°C 85°C Ta=-40°C 0.0 0.5 1.0 1.5 2.0 2.5 0 4 8 12 16 V IN (V) ISS (µA) S-812C50B 25°C 85°C Ta=-40°C (10)Power-off Pin Input Threshold vs Input Voltage 0.0 0.5 1.0 1.5 2.0 2.5 0 4 8 12 16 V IN (V) VSH / VSL (V) Ta=-40°C25°C S-812C20B 85°C Ta=-40°C 25°C85°C

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 16 Seiko Instruments Inc. „ Transient Response Characteristics (Typical data: Ta=25°C) Overshoot INPUT VOLTAGE OUTPUT VOLTAGE or LOAD CURRENT Undershoot (1) Power-on : S-812C30B (CL=10µF; ceramic capacitor) VOUT (0.5V/div) TIME (100µs/div) /G36 IN/G0C ON/OFF=0 → 5V, IOUT =10mA, CL=10µF Load dependence of overshoot at power-on C L dependence of overshoot at power-on 0.000 0.005 0.010 0.015 0.020 0.025 0.030 IOUT (A) Over Shoot (V) S-812C50B S-812C30B V IN, ON/OFF=0 → V OUT (S)+2V, CL=10 µF 0.0 0.2 0.4 0.6 0.8 0 1 02 03 04 05 0 C L (µF) Over Shoot (V) S-812C30B S-812C50B V IN,ON/OFF=0 → V OUT (S)+2V, IOUT =10mA VDD dependence of overshoot at power-on Temperature dependence of overshoot at power-on 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0 5 10 15 20 V DD (V) Over Shoot (V) S-812C50B S-812C30B V IN ,ON/OFF=0 → V DD , IOUT =10mA, C L=10 µF 0.00 0.01 0.02 0.03 0.04 0.05 0.06 -50 0 50 100 Ta (°C) Over Shoot (V) S-812C30B V IN, ON/OFF=0 → V OUT (S)+2V, IOUT =10mA, C L=10 µF S-812C50B REFERENCE DATA

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 17 (2) Power-on by ON/OFF pin : S-812C30A (CL=10µF; ceramic capacitor) TIME (200 µs/div) VIN=5V, ON/OFF=0 → 5V, IOUT =10mA, CL=10µF Load dependence of overshoot at power-on C L dependence of overshoot at power-on 0.0 0.2 0.4 0.6 0.8 0.001 0.01 0.1 1 10 100 IOUT (A) Over Shoot (V) S-812C50B S-812C30B V IN=V OUT (S)+2V, ON/OFF=0 → V OUT (S)+2V, CL=10 µF 0.0 0.2 0.4 0.6 0.8 0 1 02 03 04 05 0 C L (µF) Over Shoot (V) S-812C50B V IN=V OUT (S)+2V,ON/OFF=0 → V OUT (S)+2V, IOUT =10mA S-812C30B VDD dependence of overshoot at power-on Temperature dependence of overshoot at power-on 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 5 10 15 20 V DD (V) Over Shoot (V) S-812C50B S-812C30B V IN=V DD , ON/OFF=0 → V DD , IOUT =10mA,C L=10 µF 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 -50 0 50 100 Ta (°C) Over Shoot (V) V IN=V OUT (S)+2V,ON/OFF=0 → V OUT (S)+2V,IOUT =10mA, CL=10 µF S-812C30B S-812C50B VOUT (0.5V/div)

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 18 Seiko Instruments Inc. (3) Line Transient Response : S-812C30B (CL=10µF; ceramic capacitor) VIN,ON/OFF=4→ 8V, IOUT =10mA 2.9V 10V TIME (100 µs/div) Load dependence of overshoot at line transient CL dependence of overshoot at line transient 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0 1 02 03 04 05 0 IOUT (A) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+1V → V OUT (S)+5V, CL=10 µF S-812C30B 0.00 0.05 0.10 0.15 0.20 0.25 0 1 02 03 04 05 0 C L (µF) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+1V → V OUT (S)+5V,IOUT =10mA S-812C30B VDD dependence of overshoot at line transient Temperature dependence of overshoot at line transient 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0 5 10 15 20 V DD (V) Over Shoot (V) S-812C50B VIN, ON/OFF=V OUT (S)+1V → V DD IOUT =10mA C L=10 µF S-812C30B 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 -50 0 50 100 Ta (°C) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+1V → V OUT (S)+5V, IOUT =10mA C L=10 µF S-812C30B VOUT (0.05V/div)

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 19 VIN,ON/OFF=8→4 V, IOUT =10mA 2.8V 2.9V 10V TIME (500 µs/div) Load dependence of undershoot at line transient CL dependence of undershoot at line transient 0.0 0.2 0.4 0.6 0.8 0 1 02 03 04 05 0 IOUT (A) Under Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+5V → V OUT (S)+1V, CL=10 µF S-812C30B 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0 1 02 03 04 05 0 C L (µF) Under Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+5V → V OUT (S)+1V,IOUT =10mA S-812C30B VDD dependence of undershoot at line transient Temperature dependence of undershoot at line transient 0.00 0.05 0.10 0.15 0.20 0.25 0 5 10 15 20 V DD (V) Under Shoot (V) S-812C50B V IN, ON/OFF=V DD → V OUT (S)+1V IOUT =10mA C L=10 µF S-812C30B 0.00 0.05 0.10 0.15 0.20 0.25 0.30 -50 0 50 100 Ta (°C) Under Shoot (V) S-812C50B S-812C30B V IN,ON/OFF=V OUT (S)+5V → V OUT (S)+1V, IOUT =10mA C L=10 µF VOUT (0.05V/div)

HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.1.0 S-812C Series 20 Seiko Instruments Inc. (4) Load Transient Response : S-812C30B (CL=10µF; ceramic capacitor) VIN=5V, IOUT =10mA → 1µA,CL=10µF TIME (200µs/div) 10mA 0mA 2.9V 3.1V Load dependence of overshoot at load transient CL dependence of overshoot at load transient 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 20 40 60 80 100 IOUT (A) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+2V, IOUT =IOUT → 1µA,C L=10 µF S-812C30B 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0 1 02 03 04 05 0 C L (µF) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+2V,IOUT =10mA → 1µA S-812C30B VDD dependence of overshoot at load transient Temperature dependence of overshoot at load transient 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0 5 10 15 20 V DD (V) Over Shoot (V) S-812C50B IOUT =10mA → 1µA, CL=10 µF S-812C30B 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 -50 0 50 100 Ta (°C) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+2V, IOUT =10mA → 1µA, CL=10 µF S-812C30B VOUT (0.05V/div)

Rev.1.0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Seiko Instruments Inc. 21 VIN=5V, IOUT =1µA→ 10mA, CL=10µF 0mA 10mA 2.9V TIME (500 µs/div) Load dependence of undershoot at load transient CL dependence of undershoot at load transient 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 2 04 06 08 0 1 0 0 IOUT (A) Under Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+2V, IOUT =1 µA → IOUT ,CL=10 µF S-812C30B 0.00 0.05 0.10 0.15 0.20 0.25 0 1 02 03 04 05 0 C L (µF) Under Shoot (V) S-812C50B VIN, ON/OFF=V OUT (S)+2V,IOUT =1 µA→ 10mA S-812C30B VDD dependence of undershoot at load transient Temperature dependence of undershoot at load transient 0.00 0.05 0.10 0.15 0.20 0 5 10 15 20 V DD (V) Under Shoot (V) S-812C50B IOUT =1 µA → 10mA, C L=10 µF S-812C30B 0.00 0.05 0.10 0.15 0.20 0.25 -50 0 50 100 Ta (°C) Over Shoot (V) S-812C50B V IN, ON/OFF=V OUT (S)+2V,IOUT =1 µA → 10mA, C L=10 µF S-812C30B VOUT (0.05V/div)

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