S-812C25AUA-C2FT2G Seiko Instruments, S-812C25AUA-C2FT2G Datasheet

IC REG LDO 30MA 2.5V SOT-89-3

S-812C25AUA-C2FT2G

Manufacturer Part Number
S-812C25AUA-C2FT2G
Description
IC REG LDO 30MA 2.5V SOT-89-3
Manufacturer
Seiko Instruments
Datasheet

Specifications of S-812C25AUA-C2FT2G

Regulator Topology
Positive Fixed
Voltage - Output
2.5V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.32V @ 10mA
Number Of Regulators
1
Current - Output
30mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-62, SOT-89, TO-243 (3 Leads + Tab)
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
18 V
Output Voltage
2.5 V
Output Type
Fixed
Dropout Voltage (max)
0.95 V
Output Current
75 mA
Line Regulation
20 mV
Load Regulation
30 mV
Voltage Regulation Accuracy
2 %
Maximum Power Dissipation
1000 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
728-1017-2
© Seiko Instruments Inc., 2001-2010
www.sii-ic.com
The S-812C Series is a high-withstand voltage regulator IC which is developed by using the CMOS technology.
This IC is suitable for applications which require withstand because its maximum voltage for operation is as high
as 16 V, also for portable device having the low current consumption because this IC not only has the low
current consumption but also a power-off circuit. This IC operates stably due to the internal phase compensation
circuit so that users are able to use ceramic capacitor as the output capacitor.
• SNT-6A(H)
• SOT-23-5
• SOT-89-3
• SOT-89-5
• TO-92
• Low current consumption: Current at operation: Typ. 1.0 μA, Max. 1.8 μA (product with 3.0 V)
• Output voltage:
• Output voltage accuracy:
• Output current:
• Dropout voltage:
• Built-in Power-off circuit:
• Short-circuit protection:
• Operation voltage:
• Lead-free, Sn 100%, halogen-free
• Power source for home electric/electronic appliances
• Power source for battery-powered devices
• Power source for communication devices
Features
Applications
Packages
*1. Attention should be paid to the power dissipation of the package when the load is large.
*2. Refer to “ Product Name Structure” for details.
2.0 to 6.0 V, selectable in 0.1 V step.
±2.0%
50 mA capable (3.0 V output product, V
75 mA capable (5.0 V output product, V
Typ. 120 mV (V
Selectable if power-off function is available or not.
Active high or low in the regulator is selectable.
Selectable with/without short-circuit protection.
Short-circuited current 40 mA Typ.: in the product with protection.
16 V max.
*2
Seiko Instruments Inc.
OUT
= 5.0 V, I
OUT
= 10 mA)
CMOS VOLTAGE REGULATOR
HIGH OPERATING VOLTAGE
IN
IN
=5 V)
=7 V)
*1
*1
S-812C Series
Rev.5.0
_00
1

Related parts for S-812C25AUA-C2FT2G

S-812C25AUA-C2FT2G Summary of contents

Page 1

... This IC is suitable for applications which require withstand because its maximum voltage for operation is as high also for portable device having the low current consumption because this IC not only has the low current consumption but also a power-off circuit. This IC operates stably due to the internal phase compensation circuit so that users are able to use ceramic capacitor as the output capacitor ...

Page 2

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Block Diagrams 1. S-812CxxA Series (No short-circuit protection and power-off function) VIN VSS *1. Parasitic diode 2. S-812CxxB Series (Short-circuit protection and power-off function) VIN ON/OFF VSS *1. Parasitic diode 2 Reference voltage Figure 1 Short-circuit protection Reference voltage Figure 2 Seiko Instruments Inc ...

Page 3

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 3. S-812CxxE Series (Short-circuit protection and no power-off function) VIN VSS *1. Parasitic diode Short-circuit protection Reference voltage Figure 3 Seiko Instruments Inc. S-812C Series *1 VOUT 3 ...

Page 4

... S-812C Series Product Name Structure Users can select the product type, output voltage, and package type for the S-812C Series. Refer to the “1. Product Name” for the construction of the product name, “2. Package” regarding the package drawings and “3. Product Name List” for the full product names. ...

Page 5

... Environmental code U : Lead-free (Sn 100%), halogen-free G : Lead-free (for details, please contact our sales office) IC direction in tape specifications Product name (abbreviation) Package name (abbreviation SOT-89-3 Short-circuit protection and no power-off function Output voltage (e.g. When the output voltage is 2 expressed 20) Seiko Instruments Inc. S-812C Series * ...

Page 6

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series 2. Package Package name Package SNT-6A(H) PI006-A-P-SD SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD SOT-89-3 UP003-A-P-SD UP003-A-C-SD UP003-A-R-SD SOT-89-5 UP005-A-P-SD UP005-A-C-SD UP005-A-R-SD TO-92 (Bulk) YS003-B-P-SD TO-92 (Tape and reel) YF003-A-P-SD YF003-A-C-SD YF003-A-R-SD TO-92 (Tape and ammo) YF003-A-P-SD YZ003-C-C-SD ...

Page 7

... V±2.0 % *1. “n” changes according to the packing form in TO-92. B: Bulk, T: Tape and Reel, Z: Tape and ammo. Remark 1. Please contact our sales office for products with an output voltage value other than those specified above Please select products of environmental code = U for Sn 100%, halogen-free products. ...

Page 8

... S-812C57BPI-C5LTFx 5.7 V±2.0 % S-812C58BPI-C5MTFx 5.8 V±2.0 % S-812C59BPI-C5NTFx 5.9 V±2.0 % 6.0 V±2.0 % S-812C60BPI-C5OTFx Remark 1. Please contact our sales office for products with an output voltage value other than those specified above Please select products of environmental code = U for Sn 100%, halogen-free products. 8 Table 2 SNT-6A(H) SOT-23-5 ...

Page 9

... V±2.0 % *1. “n” changes according to the packing form in TO-92. B: Bulk, T: Tape and Reel, Z: Tape and ammo. Remark 1. Please contact our sales office for products with an output voltage value other than those specified above Please select products of environmental code = U for Sn 100%, halogen-free products. ...

Page 10

... Symbol 1 VOUT 2 VIN 3 VSS ON/OFF *1. The NC pin is electrically open. The NC pin can be connected to VIN or VSS. Seiko Instruments Inc. Rev.5.0 _00 Table 4 Description No connection Input voltage pin Output voltage pin GND pin Input voltage pin Power-off pin Table 5 Description GND pin Input voltage pin ...

Page 11

... Board size : (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. Figure 9 Power Dissipation of The Package (When mounted on Board) Pin No ...

Page 12

... SH Input voltage for high level Power-off pin V SL Input voltage for low level Power-off pin I SH Input current at high level Power-off pin I SL Input current at low level Applied to products with Short-circuit Protection Short-circuit current Table 10 Conditions 10mA IN OUT(S) OUT 2.0V ≤ V OUT(S) 3.0V ≤ ...

Page 13

... I *2. Output current at which output voltage becomes 95 −(V × 0.98), where V *3. V drop IN1 OUT(E) after gradually decreasing input voltage. *4. The ratio of temperature change in output voltage [mV/°C] is calculated using the following equation. Δ OUT 1 * ° = mV/ ...

Page 14

... capacitor for stabilizing the input. IN *2. In addition to tantalum capacitor, ceramic capacitor can be used for C *3. Control this ON/OFF pin in the product with power-off function. Caution The above connection diagram and constant will not guarantee successful operation. Perform through evaluation using the actual application to set the constant. ...

Page 15

... Thus the output capacitor C that users will use the S-812C Series, and they are not cautious about the transient response possible to omit an output capacitor. If using an output capacitor for this IC, users are able to use devices such as ceramic capacitor which has small ESR (Equivalent Series Resistance). ...

Page 16

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series 6. Temperature coefficient of output voltage The shadowed area in Figure 15 is the range where V the temperature coefficient of the output voltage is ±100 ppm/°C. The ratio of temperature change in output voltage [mV/°C] is calculated from the following equation. Δ OUT ° ...

Page 17

... VIN Current supply VSS *1. Parasitic diode 2. Output Transistor In the S-812C Series, a low on-resistance P-channel MOS FET is used as the output transistor. Be sure that V does not exceed V OUT to inverse current which flows, because of a parasitic diode between the VIN and VOUT pin. ) with V ...

Page 18

... VIN pin (in positive logic the VSS pin (in negative logic). The output voltage may increase by stopping regulation when a lower current (less than 100 μA) is applied. If the output voltage increased during power-off, pull the VOUT pin down to the VSS pin and set the ON/OFF pin to the power-down level. Logic Type ...

Page 19

... Output Capacitor ( The S-812C Series has an internal phase compensation circuit which stabilizes the operation regardless of the change of output load. Therefore it is possible for users to have a stable operation without an output capacitor (C ). However, the values of output overshoot and undershoot, which are the L characteristics of transient response, vary depending on the output capacitor. In selecting the value of output capacitor, refer to the data on C characteristics” ...

Page 20

... effective output voltage) OUT(E) Note that by using a circuit in Figure 19 impossible to set the better driving ability to the constant amperage (I ) than the S-812C Series basically has gain the driving ability which exceeds the S-812C Series, there’s a way to combine a constant current circuit and a current boosting circuit, as seen in Figure 20. ...

Page 21

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 Precautions • Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low. When mounting an output capacitor between the VOUT and VSS pins (C input between VIN and VSS pins (C as possible. ...

Page 22

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Characteristics (Typical Data) 1. Output Voltage vs Output Current (When load current increases) S-812C20B (Ta=25°C) Short- circuit protection 2.5 V =2.5V IN 2.0 7V 1.5 1.0 3V 0.5 0 (mA) OUT S-812C50B (Ta=25°C) Short-circuit protection 6.0 10V 5.0 4 ...

Page 23

... Rev.5.0 _00 2. Maximum Output Current vs Input Voltage S-812C20B Short-circuit protection 140 120 100 80 60 25°C 40 Ta=-40° S-812C50B Short-circuit protection 300 Ta=-40°C 250 200 150 100 25° S-812C20A No short-circuit protection 140 120 Ta=-40 º C 100 80 25 º º S-812C50A No short-circuit protection ...

Page 24

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series 3. Maximum Output Current vs. Input Voltage S-812C20B (Ta=25°C) 2.10 =-1 μA - OUT 2.05 - 1.95 1.90 1 S-812C50B (Ta=25°C) 5.25 =-1 μA I 5.15 OUT -20 mA 5.05 - 4.85 4.75 4 Dropout Voltage vs Output Current ...

Page 25

... Rev.5.0 _00 5. Output Voltage vs Ambient Temperature S-812C20B 2.04 2.02 2.00 1.98 1.96 - (°C) S-812C50B 5.10 5.05 5.00 4.95 4.90 - (°C) 6. Line Regulation 1 vs Ambient Temperature S-812C20B S-812C50B (°C) 8. Load Regulation vs Ambient Temperature S-812C30B S-812C50B (°C) HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR ...

Page 26

... Ta= -40°C 0 (V) IN S-812C50B 2.5 2.0 25°C 1.5 1.0 0.5 Ta= -40°C 0 10. Power-off Pin Input Threshold vs Input Voltage 2.5 85°C 2.0 1.5 1.0 0.5 85° S-812C30B 2.5 2.0 85°C 1.5 1.0 0.5 0 85°C 12 ...

Page 27

... L =10 mA, C =10 μF OUT L C dependency of overshoot at power- =10 μF L S-812C50B 0.06 0.08 0.1 “Ta” dependency of overshoot at power-on =10 mA OUT =10 μ (V) Seiko Instruments Inc. S-812C Series =0→ ON/OFF OUT(S) OUT 0.8 S-812C50B 0.6 S-812C30B 0.4 0.2 0 (μF) L =0→ =10 mA ...

Page 28

... V ( =10μF; ceramic capacitor) L =10 mA, C =10μF OUT L C dependency of overshoot at power-on by power-off L pin =0 → OUT(S) =10 μ 100 “Ta” dependency of overshoot at power-on by power- off pin =10 mA OUT =10 μ S-812C50B 15 20 Seiko Instruments Inc =0→ OUT(S) ON/OFF OUT(S) I OUT 0.8 0.6 S-812C50B 0 ...

Page 29

... V (V) DD HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR =10μF; ceramic capacitor) L =10 mA OUT dependency of overshoot at line transient OUT(S) =10 μ “Ta” dependency of overshoot at line transient =10 mA OUT =10 μ S-812C50B 15 20 Seiko Instruments Inc. S-812C Series =V +1 V→ ON/OFF OUT(S) OUT(S) I OUT ...

Page 30

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series =8→ ON/OFF 3 V 2.9 V 2.8 V TIME (500μs/div) Load dependency of undershoot at line transient = ON/OFF OUT(S) 0.8 0.6 S-812C50B 0.4 0.2 S-812C30B 0 (mA) OUT V dependency of undershoot at line transient ON/OFF I OUT 0.25 0.20 0.15 0.10 S-812C50B 0 ...

Page 31

... OUT(S) →1 μA, C =10μF L 0.16 0.14 0.12 0.10 0.08 0.06 S-812C30B 0.04 0.02 0. 100 “Ta” dependency of overshoot at load transient =10 μF L 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0. Seiko Instruments Inc. S-812C Series = ON/OFF OUT(S) =10 mA→ ...

Page 32

... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series = μA,→10 mA OUT 3 V 2.9 V TIME (500 μs / div) Load dependency of undershoot at load transient μA→I I OUT 1.2 1.0 S-812C50B 0.8 0.6 0.4 0.2 0 (mA) Load V dependency of undershoot at load transient DD =1 μA→10 mA, C ...

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... Seiko Instruments Inc. is strictly prohibited. • The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc. ...

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