S814

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www.sii-ic.com LOW DROPOUT CMOS VOLTAGE REGULATOR © Seiko Instruments Inc., 1999-2015 Rev.3.1_00 Seiko Instruments Inc. 1 The S-814 Series is a low dropout voltage, high output voltage accuracy and low current consumption positive voltage regulator developed utilizing CMOS technology. Built-in low ON-resistance transistors provide low dropout voltage and large output current. The ON/OFF circuit ensures long battery life. Various types of output capacitors can be used in t he S-814 Series compared with the past CMOS voltage regulators. (i.e., Small ceramic capacitors can also be used in the S-814 Series.) The SOT-23-5 miniaturized package and the SOT-89- 5 packages are recommended to use for configuring portable devices and large output current applications, respectively.  Features

• Output voltage: 2.0 V to 6.0 V, selectable in 0.1 V step
• Output voltage accuracy: ±2.0%
• Dropout voltage: 170 mV typ. (5.0 V output product, I OUT=60 mA)
• Current consumption: During operation: 30 μA typ., 40 μA max. During power-off: 100 nA typ., 500 nA max.
• Output current: Possible to output 110 mA (3.0 V output product, V IN=4 V)*1 Possible to output 180 mA (5.0 V output product, V IN=6 V)*1
• Output capacitor: A ceramic capacitor of 0.47 μF or more can be used.
• Built-in ON/OFF circuit: Ensures long battery life.
• Built-in short-circuit protection circuit
• Operation temperature range: Ta=−40°C to +85°C
• Lead-free, Sn 100%, halogen-free*2 *1. Attention should be paid to the power dissipation of the package when the output current is large. *2. Refer to “ Product Name Structure” for details.  Applications
• Constant-voltage power source for battery-powered device, personal communication device, and home electric/electronic appliance.  Packages
• SOT-23-5
• SOT-89-5

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 2  Block Diagram VOUT ON/OFF VSS VIN Short-circuit protection circuit ON/OFF circuit Reference voltage *1. Parasitic diode Figure 1

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 3  Product Name Structure 1. Product Name S-814 x xx A xx- xxx T2 x Environmental code U: Lead-free (Sn 100%), halogen-free G: Lead-free (for details, please contact our sales office) IC direction in tape specifications*1 Product code*2 Package code MC: SOT-23-5 UC: SOT-89-5 Output voltage 20 to 60 (e.g., When output voltage is 2.0 V, it is expressed as 20.) Product type*3 A: OFF/ON pin positive logic B: OFF/ON pin negative logic *1. Refer to the tape drawing. *2. Refer to “3. Product Name List”. *3. Refer to “3. ON/OFF pin” in “ Operation”. 2. Packages Package Name Drawing Code Package Tape Reel SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD SOT-89-5 UP005-A-P-SD UP 005-A-C-SD UP005-A-R-SD

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 4 3. Product Name List Table 1 Output voltage SOT-23-5 SOT-89-5 2.0 V±2.0 % S-814A20AMC-BCKT2x S-814A20AUC-BCKT2x 2.1 V±2.0 % S-814A21AMC-BCLT2x S-814A21AUC-BCLT2x 2.2 V±2.0 % S-814A22AMC-BCMT2x S-814A22AUC-BCMT2x 2.3 V±2.0 % S-814A23AMC-BCNT2x S-814A23AUC-BCNT2x 2.4 V±2.0 % S-814A24AMC-BCOT2x S-814A24AUC-BCOT2x 2.5 V±2.0 % S-814A25AMC-BCPT2x S-814A25AUC-BCPT2x 2.6 V±2.0 % S-814A26AMC-BCQT2x S-814A26AUC-BCQT2x 2.7 V±2.0 % S-814A27AMC-BCRT2x S-814A27AUC-BCRT2x 2.8 V±2.0 % S-814A28AMC-BCST2x S-814A28AUC-BCST2x 2.9 V±2.0 % S-814A29AMC-BCTT2x S-814A29AUC-BCTT2x 3.0 V±2.0 % S-814A30AMC-BCUT2x S-814A30AUC-BCUT2x 3.1 V±2.0 % S-814A31AMC-BCVT2x S-814A31AUC-BCVT2x 3.2 V±2.0 % S-814A32AMC-BCWT2x S-814A32AUC-BCWT2x 3.3 V±2.0 % S-814A33AMC-BCXT2x S-814A33AUC-BCXT2x 3.4 V±2.0 % S-814A34AMC-BCYT2x S-814A34AUC-BCYT2x 3.5 V±2.0 % S-814A35AMC-BCZT2x S-814A35AUC-BCZT2x 3.6 V±2.0 % S-814A36AMC-BDAT2x S-814A36AUC-BDAT2x 3.7 V±2.0 % S-814A37AMC-BDBT2x S-814A37AUC-BDBT2x 3.8 V±2.0 % S-814A38AMC-BDCT2x S-814A38AUC-BDCT2x 3.9 V±2.0 % S-814A39AMC-BDDT2x S-814A39AUC-BDDT2x 4.0 V±2.0 % S-814A40AMC-BDET2x S-814A40AUC-BDET2x 4.1 V±2.0 % S-814A41AMC-BDFT2x S-814A41AUC-BDFT2x 4.2 V±2.0 % S-814A42AMC-BDGT2x S-814A42AUC-BDGT2x 4.3 V±2.0 % S-814A43AMC-BDHT2x S-814A43AUC-BDHT2x 4.4 V±2.0 % S-814A44AMC-BDIT2x S-814A44AUC-BDIT2x 4.5 V±2.0 % S-814A45AMC-BDJT2x S-814A45AUC-BDJT2x 4.6 V±2.0 % S-814A46AMC-BDKT2x S-814A46AUC-BDKT2x 4.7 V±2.0 % S-814A47AMC-BDLT2x S-814A47AUC-BDLT2x 4.8 V±2.0 % S-814A48AMC-BDMT2x S-814A48AUC-BDMT2x 4.9 V±2.0 % S-814A49AMC-BDNT2x S-814A49AUC-BDNT2x 5.0 V±2.0 % S-814A50AMC-BDOT2x S-814A50AUC-BDOT2x 5.1 V±2.0 % S-814A51AMC-BDPT2x S-814A51AUC-BDPT2x 5.2 V±2.0 % S-814A52AMC-BDQT2x S-814A52AUC-BDQT2x 5.3 V±2.0 % S-814A53AMC-BDRT2x S-814A53AUC-BDRT2x 5.4 V±2.0 % S-814A54AMC-BDST2x S-814A54AUC-BDST2x 5.5 V±2.0 % S-814A55AMC-BDTT2x S-814A55AUC-BDTT2x 5.6 V±2.0 % S-814A56AMC-BDUT2x S-814A56AUC-BDUT2x 5.7 V±2.0 % S-814A57AMC-BDVT2x S-814A57AUC-BDVT2x 5.8 V±2.0 % S-814A58AMC-BDWT2x S-814A58AUC-BDWT2x 5.9 V±2.0 % S-814A59AMC-BDXT2x S-814A59AUC-BDXT2x 6.0 V±2.0 % S-814A60AMC-BDYT2x S-814A60AUC-BDYT2x Remark 1. Please contact our sales office for type B products. 2. x: G or U 3. Please select products of environmental code = U for Sn 100%, halogen-free products.

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 5  Pin Configurations SOT-23-5 Top view 5 4 3 2 1 Table 2 Pin No. Symbol Pin description

1 VIN Voltage input pin

2 VSS GND pin

3 ON/OFF ON/OFF pin

4 NC *1 No connection

5 VOUT Voltage output pin

*1. The NC pin is electrically open. The NC pin can be connected to the VIN pin or the VSS pin. Figure 2 SOT-89-5 Top view 1 3 2 4 5 Table 3 Pin No. Symbol Pin description

1 VOUT Voltage output pin

3 NC *1 No connection

4 ON/OFF ON/OFF pin

5 VIN Voltage input pin

*1. The NC pin is electrically open. The NC pin can be connected to the VIN pin or the VSS pin. Figure 3

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 6  Absolute Maximum Ratings Table 4 (Ta=25°C unless otherwise specified) Item Symbol Absolute maximum rating Unit Input voltage VIN VSS−0.3 to VSS+12 V VON/OFF VSS−0.3 to VSS+12 V Output voltage V OUT VSS−0.3 to VIN+0.3 V Power dissipation SOT-23-5 PD 250 (When not mounted on board) mW 600*1 mW SOT-89-5 500 (When not mounted on board) mW 1000*1 mW Operation ambient temperature T opr −40 to +85 °C Storage temperature T stg −40 to +125 °C *1. When mounted on board [Mounted on board] (1) Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. 600 400 Power Dissipation (P D) [mW] 200 0 50 100 150 Ambient Temperature (Ta) [°C] 800 1000 SOT-23-5 SOT-89-5 Figure 4 Power Dissipation of Package (When Mounted on Board)

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 7  Electrical Characteristics Table 5 (Ta=25°C unless otherwise specified) Item Symbol Condition Min. Typ. Max. Units Test circuit Output voltage*1 V OUT(E) VIN=VOUT(S)+1 V, IOUT=30 mA VOUT(S) ×0.98 VOUT(S) VOUT(S) ×1.02 V 1 Output current*2 I OUT VOUT(S)+1 V≤VIN≤10 V 2.0 V≤VOUT(S)≤2.9 V 100*3 ⎯ ⎯ mA 3 3.0 V≤VOUT(S)≤3.9 V 110*3 ⎯ ⎯ mA 3 4.0 V≤VOUT(S)≤4.9 V 135*3 ⎯ ⎯ mA 3 5.0 V≤VOUT(S)≤6.0 V 180*3 ⎯ ⎯ mA 3 Dropout voltage*4 V drop IOUT=60 mA Line regulation 1 OUTIN 1OUT VV∆

• VOUT(S)+0.5 V≤VIN≤10 V, IOUT=30 mA ⎯ 0.05 0.2 %/V 1 Line regulation 2 OUTIN 2OUT VV∆
• VOUT(S)+0.5 V≤VIN≤10 V, IOUT=10 μA ⎯ 0.05 0.2 %/V 1 Load regulation ΔVOUT3 V IN=VOUT(S)+1 V, 10 μA≤IOUT≤80 mA ⎯ 30 50 mV 1 Output voltage temperature cofficient *5 OUT OUT VTa∆ VIN=VOUT(S)+1 V, IOUT=30 mA, °C 1 Current consumption during operation ISS1 VIN=VOUT(S)+1 V, ON/OFF pin=ON, No load ⎯ 30 40 μA 2 Current consumption during power-off ISS2 VIN=VOUT(S)+1 V, ON/OFF pin=OFF, No load ⎯ 0.1 0.5 μA 2 Input voltage VIN ⎯ ⎯ ⎯ 10 V 1 ON/OFF pin input voltage “H” VSH VIN=VOUT(S)+1 V, RL=1 kΩ, Judged at VOUT level 1.5 ⎯ ⎯ V 4 ON/OFF pin input voltage “L” VSL VIN=VOUT(S)+1 V, RL=1 kΩ, Judged at VOUT level ⎯ ⎯ 0.3 V 4 ON/OFF pin input current “H” ISH VIN=VOUT(S)+1 V, VON/OFF=7 V −0.1 ⎯ 0.1 μA 4 ON/OFF pin input current “L” ISL VIN=VOUT(S)+1 V, VON/OFF=0 V −0.1 ⎯ 0.1 μA 4 Short current limit IOS VIN=VOUT(S)+1 V, VOUT pin=0 V ⎯ 70 ⎯ mA 3 Ripple rejection RR VIN=VOUT(S)+1 V, f=100 Hz, ΔVrip=0.5 Vrms, IOUT=30 mA ⎯ 45 ⎯ dB 5 *1. V OUT(S): Set output voltage V OUT(E): Actual output voltage Output voltage when fixing I OUT(=30 mA) and inputting VOUT(S)+1.0 V *2. The output current at which t he output voltage becomes 95% of VOUT(E) after gradually increasing the output current. *3. The output current can be at least this value. Use load amperage not exceeding this value.

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 8 *4. Vdrop=VIN1 *1−(VOUT(E)×0.98) *1. VIN1 is the input voltage at which the output voltage becomes 98% of VOUT(E) after gradually decreasing the input voltage. *5. A change in the temperature of the output voltage [m V/°C] is calculated using the following equation. [] [ ] [] 1000 C/ppm VTa∆ V∆ VV C/mV Ta∆ OUT OUT )S(OUT OUT *1. Change in temperature of output voltage *2. Set output voltage *3. Output voltage temperature coefficient

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 10  Standard Circuit VSS VOUTVIN CIN *1 CL Input Output GND Single GND *1. CIN is a capacitor used to stabilize input. *2. In addition to a tantalum capacitor, a ceramic capacitor of 0.47 μF or more can be used in CL. Figure 10 Caution The above connection diagram and constant will not guarantee successful operation. Perform through evaluation using the actual application to set the constant.  Explanation of Terms 1. Low dropout voltage regulator This voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor. 2. Low ESR ESR is the abbreviation for Equivalent Series Resistance. The low ESR output capacitor (C L) can be used in the S-814 Series. 3. Output voltage (V OUT) The accuracy of the output voltage is ensured at ±2.0% under the specified conditions *1 of input voltage, output current, and temperature, which differ depending upon the product items. *1. The condition differs depending upon each product. Caution If you change the above conditions, the output voltage value may vary out of the accuracy range of the output voltage. Refer to “  Electrical Characteristics” and “  Characteristics (Typical Data)” for details. 4. Line regulation 1 (ΔVOUT1) and Line regulation 2 (ΔVOUT2) Indicates the input voltage dependencies of output vo ltage. That is, the value shows how much the output voltage changes due to a change in the input voltage with the output current remained unchanged. 5. Load regulation (ΔVOUT3) Indicates the output current dependencies of output vo ltage. That is, the value shows how much the output voltage changes due to a change in the output current with the input voltage remained unchanged.

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 11 6. Dropout voltage (Vdrop) Indicates the difference between input voltage (V IN1) and the output voltage when; decreasing input voltage (VIN) gradually until the output volt age has dropped out to the value of 98% of the actual output voltage (VOUT(E)). Vdrop = VIN1−(VOUT(E)×0.98) 7. Output voltage temperature coefficient  Δ OUT OUT VTa V The shaded area in Figure 11 is the range where VOUT varies in the operation temperature range when the output voltage temperature coefficient is ±100 ppm/°C. VOUT(E) Example of S-814A28A typ. product −40 +25 +0.28 mV/°C VOUT [V] *1. V OUT(E) is the value of the output voltage measured at Ta = +25°C. +85 Ta [°C] −0.28 mV/°C Figure 11 A change in the temperature of the output voltage [mV/°C] is calculated using the following equation. [] [ ] [] 1000 C/ppm VTa V VV C/mV Ta V OUT OUT )S(OUT OUT ÷°•Δ Δ×=°Δ Δ 3*2**1 *1. Change in temperature of output voltage *2. Set output voltage *3. Output voltage temperature coefficient

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 13 3. ON/OFF pin This pin starts and stops the regulator. When the ON/OFF pin is set to OFF level, the entire internal circuit stops operating, and the built-in P- channel MOS FET output transisto r between VIN pin and VOUT pin is turned off, reducing current consumption significantly. The VOUT pin enters the Vss level due to internally divided resistance of several MΩ between VOUT pin and VSS pin. Furthermore, the structure of the ON/OFF pin is as shown in Figure 13. Since the ON/OFF pin is neither pulled down nor pulled up internally, do not use it in the floating status. In addition, please note that current consumption increases if a voltage of 0.3 V to V IN−0.3 V is applied to the ON/OFF pin. When not using the ON/OFF pin, connect it to the VIN pin in case of the product A type, connect it to the VSS pin in B type. VIN ON/OFF VSS Figure 13 Table 6 Product type ON/OFF pin Internal circuit VOUT pin voltage Current consumption A “H”: ON Operate Set value I SS1 A “L”: OFF Stop V SS level I SS2 B “H”: OFF Stop V SS level I SS2 B “L”: ON Operate Set value I SS1 4. Short-circuit protection circuit The S-814 Series incorporates a short-circuit protec tion circuit to protect the output transistor against short-circuiting between VOUT pin and VSS pin. The short-circuit protection circuit co ntrols output current as shown in “ 1. Output voltage (V OUT) vs. Output current (I OUT) (When load current increases) ” in “ Characteristics (Typical Data) ”, and prevents output current of approx. 70 mA or more from flowing even if VOUT pin and VSS pin are shorted. However, the short-circuit protection circuit does not protect thermal shutdown. Be sure that input voltage and load current do not exceed the specified power dissipation level. When output current is large and a difference be tween input and output voltages is large even if not shorted, the short-circuit protection circuit may st art functioning and the output current may be controlled to the specified amperage. For details, refer to “3. Maximum output current (I OUTmax) vs. Input voltage (VIN)” in“ Characteristics (Typical Data)”.

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 14  Selection of Output Capacitor (CL) Mount an output capacitor between VOUT pin and VSS pin for phase compensation. The S-814 Series enables customers to use a ceramic capacitor as well as a tantalum or an aluminum electrolytic capacitor.

• A ceramic capacitor or an OS capacitor: Use a capacitor of 0.47 μF or more.
• A tantalum or an aluminum electrolytic capacitor: Use a capacitor of 0.47 μF or more and ESR of 10 Ω or less. Pay special attention not to cause an oscillation due to an increase in ESR at low temperatures, when you use the aluminum electrolytic capacitor. Ev aluate the capacitor taking into consideration its performance including temperature characteristics. Overshoot and undershoot characte ristics differ depending upon the ty pe of the output capacitor you select. Refer to C L dependencies of “ 1. Transient Response Characteristics (S-814A30A, Typical data, Ta=25°C)” in “ Reference Data”.  Precautions
• Wiring patterns for the VIN pin, the VOUT pin and G ND should be designed so that the impedance is low. When mounting an output capacitor between the VOUT pin and the VSS pin (C L) and a capacitor for stabilizing the input between the VIN pin and the VSS pin (C IN), the distance from the capacitors to these pins should be as short as possible.
• Note that generally the output voltage may increase when a series regulator is used at low load current (10 μA or less).
• Generally a series regulator may cause oscillation, depending on the selection of external parts. The following conditions are recommended for the S-814 Series. However, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperature characteristics. Output capacitor (CL): 0.47 μF or more Equivalent Series Resistance (ESR): 10 Ω or less Input series resistance (RIN): 10 Ω or less
• The voltage regulator may oscillate when the imp edance of the power supply is high and the input capacitance is small or an input capacitor is not connected.
• Overshoot may occur in the output voltage momentarily if the voltage is rapidl y raised at power-on or when the power supply fluctuates. Sufficiently eval uate the output voltage at pow er-on with the actual device.
• The application conditions for the input voltage, the ou tput voltage, and the load current should not exceed the package power dissipation.
• In determining the output current, attention should be paid to the output current value specified in Table 5 in “ Electrical Characteristics” and footnote *3 of the table.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit.
• SII claims no responsibility for any disputes arising out of or in co nnection with any infringement by products including this IC of patents owned by a third party.

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 15  Characteristics (Typical data) 1. Output voltage (VOUT) vs. Output current (IOUT) (When load current increases) S-814A20A S-814A30A (Ta=25°C) 1.0 2.0 0 50 100 150 200 250 IOUT [mA] VOUT [V] 3 V VIN=2.3 V 2.5 V 10 V 4 V (Ta=25°C) 1.0 2.0 3.0 0 100 200 300 400 IOUT [mA] VOUT [V] VIN=3.3 V 4 V 5 V

3.5 V6 V

(Ta=25°C) 1.0 2.0 3.0 4.0 5.0 0 200 400 600 800 I OUT [mA] VOUT [V] VIN=5.3 V 6 V 7 V 5.5 V 10 V 8 V Remark In determining the output current, attention should be paid to the following. 1. The minimum output current value and footnote *3 in Table 5 in “ Electrical Characteristics”. 2. The package power dissipation. 2. Output voltage (VOUT) vs. Input voltage (VIN) S-814A20A (Ta = 25°C) S-814A30A (Ta = 25 °C) 60 mA 30 mA 1 mA IOUT = 10 μA 100 μA 1 2 3 4 1 1.0 1.5 2.0 2.5 VIN (V) VOUT (V) 60 mA 30 mA 2.0 2.5 3.0 3.5 IOUT = 10 μA 100 μA 1 mA VIN (V) VOUT (V) 2 3 4 5 1.5 S-814A50A (Ta = 25°C) 4.5 5.0 5.5 VIN (V) VOUT (V) 4 5 6 7 4.0 60 mA 30 mA IOUT = 10 μA 100 μA 1 mA

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 16 3. Maximum output current (IOUTmax) vs. Input voltage (VIN) S-814A20A S-814A30A 100 200 300 1 2 3 4 5 6 7 8 9 10 VIN [V] IOUTmax [mA] Ta=−40°C 25°C 85°C 200 400 600 2 3 4 5 6 7 8 9 10 VIN [V] IOUTmax [mA] Ta=−40°C 25°C 85°C S-814A50A 200 400 600 800 4 5 6 7 8 9 10 VIN [V] IOUTmax [mA] Ta=−40°C 25°C 85°C Remark In determining the output current, attention should be paid to the following. 1. The minimum output current value and footnote *3 in Table 5 in “ Electrical Characteristics”. 2. The package power dissipation. 4. Dropout voltage (Vdrop) vs. Output current (IOUT) S-814A20A S-814A30A 100 150 200 250 300 0 5 10 15 20 25 30 I OUT [mA] Vdrop [mV] Ta=−40°C 25°C 85°C 120 0 5 10 15 20 25 30 IOUT [mA] Vdrop [mV] 25°C Ta=−40°C 85°C S-814A50A 120 160 0 10 20 30 40 50 60 IOUT [mA] Vdrop [mV] Ta=−40°C 25°C 85°C

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 17 5. Output voltage (VOUT) vs. Ambient temperature (Ta) S-814A20A S-814A30A 1.96 1.98 2.00 2.02 2.04 −50 0 50 100 Ta [°C] VOUT [V] VIN=3V, IOUT=30mA 2.94 2.97 3.00 3.03 3.06 −50 05 0 1 0 0 Ta [°C] VOUT [V] VIN=4V, IOUT=30mA S-814A50A 4.90 4.95 5.00 5.05 5.10 −50 0 50 100 Ta [°C] VOUT [V] VIN=6V, IOUT=30mA 6. Line regulation (ΔVOUT1) vs. Ambient temperature (Ta) S-814A20A/S-814A30A/S-814A50A −50 0 50 100 Ta [°C] 3 V VOUT=2 V 5 V VIN=VOUT(S)+0.5↔10 V, IOUT=30 mA ΔVOUT1 [mV]

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 18 7. Load regulation (ΔVOUT3) vs. Ambient temperature (Ta) S-814A20A/S-814A30A/S-814A50A −50 0 50 100 Ta [°C] 3 V 5 V VOUT=2 V VIN=VOUT(S)+1 V, IOUT=10 μA↔80 mA ΔVOUT3 [mV] 8. Current consumption (ΔISS1) vs. Input voltage (VIN) S-814A20A S-814A30A VIN (V) ΔISS1 (μA) 6 8 100 2 Ta = −40 °C 25 °C 85 °C VIN (V) ΔISS1 (μA) 6 8 100 2 Ta = −40 °C 25 °C 85 °C S-814A50A VIN (V) ΔISS1 (μA) 6 8 100 2 Ta = −40 °C 25 °C 85 °C

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 19 9. Threshold voltage of ON/OFF pin (VSH/VSL) vs. Input voltage (VIN) S-814A20A S-814A30A 0.5 1.0 1.5 2.0 2.5 2 4 6 8 10 VIN [V] VSH/VSL [V] VSH VSL 0.5 1.0 1.5 2.0 2.5 3 5 7 8 10 VIN [V] VSH/VSL [V] VSH VSL S-814A50A 0.5 1.0 1.5 2.0 2.5 5 6 8 9 10 VIN [V] VSH/VSL [V] VSL VSH

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 20  Reference Data 1. Transient Response Characteristics (S-814A30A, Typical data, Ta=25°C) Overshoot Input voltage or Load current Output volatage Undershoot 1-1. At power on Output voltage (VOUT) – Time (t) VIN=0→10 V, IOUT=30 mA t [50 μs/div] VOUT [0.5V/div] 0 V 0 V 10 V CL=4.7 μF CL=1 μF VOUT VIN Load dependencies of overshoot C L dependencies of overshoot 0.2 0.4 0.6 0.8 IOUT [A] Overshoot [V] 5 V VIN=0→VOUT(S)+1 V, CL=1 μF 3 V VOUT=2 V 0.2 0.4 0.6 0.8 1.0 0.1 1 10 100 CL [uF] Overshoot [V] VOUT=2 V 5 V 3 V VIN=0→VOUT(S)+1 V, IOUT=30 mA VDD dependencies of overshoot Temperature dependencies of overshoot 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 VDD [V] Overshoot [V] VIN=0→VDD, IOUT=30 mA, CL=1 μF VOUT=2 V

3 V 5 V

0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Overshoot [V] VIN=0→VOUT(S)+1 V, IOUT=30 mA, CL=1 μF VOUT=2 V

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 21 1-2. At power ON/OFF control Output voltage (VOUT) – Time (t) VIN=10 V, ON/OFF=0→10 V, IOUT=30 mA t [50 μs/div] VOUT [0.5 V/div] 10 V 0 V 0 V CL=4.7 μF CL=1 μF VOUT ON/OFF Load dependencies of overshoot C L dependencies of overshoot 0.2 0.4 0.6 0.8 IOUT [A] Overshoot [V] 5 V VOUT=2 V 3 V VIN=VOUT(S)+1 V, CL=1 μF, ON/OFF=0→VOUT(S)+1 V 0.2 0.4 0.6 0.8 1.0 0.1 1 10 100 CL [μF] Overshoot [V] VIN=VOUT(S)+1 V, IOUT=30 mA, ON/OFF=0→VOUT(S)+1V VOUT=2 V VDD dependencies of overshoot Temperature dependencies of overshoot 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 VDD [V] Overshoot [V] VIN=VDD, IOUT=30 mA, CL=1 μF, ON/OFF=0→VDD VOUT=2 V

5 V3 V

0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Overshoot [V] 5 V 3 V VIN=VOUT(S)+1 V, IOUT=30 mA, CL=1 μF, ON/OFF=0→VOUT(S)+1V VOUT=2 V

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 22 1-3. At power fluctuation Output voltage (VOUT) – Time (t) VIN=4.0→10 V, IOUT=30 mA t [50 μs/div] VOUT [0.5 V/div] 3 V CL=4.7 μF CL=1 μF VIN 4 V 10 V VOUT VIN=10→4.0 V, IOUT=30 mA t [50 μs/div] VOUT [0.5 V/div] 3 V 4 V 10 V VIN CL=4.7 μF CL=1 μF VOUT Load dependencies of overshoot C L dependencies of overshoot 0.2 0.4 0.6 0.8 IOUT [A] Overshoot [V] 5 V VIN=VOUT(S)+1 V→VOUT(S)+2 V, CL=1 μF VOUT=2 V 3 V 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.1 1 10 100 C L [μF] Overshoot [V]

5 V 3 V

VOUT=2 V VIN=VOUT(S)+1 V→VOUT(S)+2 V, IOUT=30 mA VDD dependencies of overshoot Temperature dependencies of overshoot 0.5 1.0 1.5 2.0 0 2 4 6 8 10 VDD [V] Overshoot [V] VIN=VOUT(S)+1 V→VDD, IOUT=30 mA, CL=1 μF VOUT=2 V 3 V 5 V 0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Overshoot [V] 5 V 3 V VOUT=2 V VIN=VOUT(S)+1 V→VOUT(S)+2 V, IOUT=30 mA, CL=1 μF Load dependencies of undershoot C L dependencies of undershoot 0.2 0.4 0.6 0.8 IOUT [A] Undershoot [V] 5 V VOUT=2 V VIN=VOUT(S)+2 V→VOUT(S)+1 V, CL=1 μF 3 V 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.1 1 10 100 CL [μF] Undershoot [V] 5 V 3 V VOUT=2 V VIN=VOUT(S)+2 V→VOUT(S)+1 V, IOUT=30 mA

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 23 VDD dependencies of undershoot Temperature dependencies of undershoot 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 VDD [V] Undershoot [V] 5 V 3 V VIN=VDD→VOUT(S)+1 V, IOUT=30 mA, CL=1 μF VOUT=2 V 0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Undershoot [V] VOUT=2 V VIN=VOUT(S)+2 V→VOUT(S)+1 V, IOUT=30 mA, CL=1 μF

LOW DROPOUT CMOS VOLTAGE REGULATOR S-814 Series Rev.3.1_00 Seiko Instruments Inc. 24 1-4. At load fluctuation Output voltage (VOUT) – Time (t) IOUT=10 μA→30 mA, VIN=4 V t [20 μs/div] VOUT [0.2 V/div] 30 mA VOUT IOUT 3 V 10 μA CL=4.7 μF CL=1 μF IOUT=30 mA→10 μA, VIN=4 V t [20 ms/div] VOUT [0.1 V/div] 30 mA VOUT IOUT 3 V 10 μA CL=1 μF CL=4.7 μF Load current dependencies of overshoot C L dependencies of overshoot 0.2 0.4 0.6 0.8 ΔIOUT [A] Overshoot [V] 5 V VOUT=2 V VIN=VOUT(S)+1 V, CL=1 μF 3 V Remark ΔIOUT shows larger load current at load current fluctuation. Smaller current at load current fluctuation is fixed to 10 µA. i.e. ΔI OUT=1.E−02 [A] means load current fluctuation from 10 mA to 10 µA. 0.2 0.4 0.6 0.8 1.0 0.1 1 10 100 CL [μF] Overshoot [V] 5 V 3 V VIN=VOUT(s)+1 V, IOUT=30 mA→10 μA VOUT=2 V VDD dependencies of overshoot Temperature dependencies of overshoot 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 VDD [V] Overshoot [V] 5 V

3 V VOUT=2 V

VIN=VDD, IOUT=30 mA→10 μA, CL=1 μF 0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Overshoot [V] 3 V VIN=VOUT(S)+1 V, IOUT=30 mA→10 μA, CL=1 μF VOUT=2 V 5 V

LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.1_00 S-814 Series Seiko Instruments Inc. 25 Load current dependencies of undershoot C L dependence of undershoot 0.2 0.4 0.6 0.8 1.2 1.4 ΔIOUT [A] Undershoot [V] VIN=VOUT(S)+1 V, CL=1 μF VOUT=2 V Remark ΔIOUT shows larger load current at load current fluctuation. Lower current at load current fluctuation is fixed to 10 µA. i.e. ΔI OUT=1.E−02 [A] means load current fluctuation from 10 µA to 10 mA. 0.2 0.4 0.6 0.8 1.0 1.2 0.1 1 10 100 CL [μF] Undershoot [V] 5 V VIN=VOUT(S)+1 V, IOUT=10 μA→30 mA 3 V VOUT=2 V VDD dependencies of undershoot Temperature dependencies of undershoot 0.2 0.4 0.6 0.8 1.0 0 2 4 6 8 10 VDD [V] Undershoot [V] VIN=VDD, IOUT=10 μA→30 mA, CL=1 μF VOUT=2 V 0.2 0.4 0.6 0.8 1.0 −50 0 50 100 Ta [°C] Undershoot [V] VIN=VOUT(S)+1 V, IOUT=10 μA→30 mA, CL=1 μF VOUT=2 V 3 V 5 V

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