S-816A34AMC-BAJT2G SII [Seiko Instruments Inc], S-816A34AMC-BAJT2G Datasheet

no-image

S-816A34AMC-BAJT2G

Manufacturer Part Number
S-816A34AMC-BAJT2G
Description
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
Manufacturer
SII [Seiko Instruments Inc]
Datasheet
EXTERNAL TRANSISTOR TYPE
CMOS VOLTAGE REGULATOR
Rev.5.1
(1) Low current consumption
(2) Input voltage range:
(3) Output voltage accuracy:
(4) Output voltage range:
(5) With shutdown function.
(6) A built-in current source (10 µA) eliminates the need of a base-emitter resistance.
(7) With overcurrent (base current) protection function.
(8) Lead-free products
• Power supplies for on-board such as battery devices for portable telephones, electronic notebooks, PDAs.
• Constant voltage power supplies for cameras, video equipment and portable communications equipment.
• Power Supplies for CPUs.
• Post-Regulators for Switching Regulators.
• Main Regulators in Multiple-Power Supply Systems.
Features
Applications
Package
SOT-23-5
Package Name
_00
• Operation mode:
• Shutdown mode:
MP005-A
Package
30 µA typ., 40 µA max.
1 µA max.
16 V max.
± 2.0%
Selectable between 2.5 V and 6.0 V in steps of 0.1 V.
The S-816 Series consists of external transistor type positive
voltage regulators, which have been developed using the CMOS
process. These voltage regulators incorporate an overcurrent
protection, and shutdown function. A low drop-out type regulator
with an output current ranging from several hundreds of mA to 1 A
can be configured with the PNP transistor driven by this IC.
Despite the features of the S-816, which is low current
consumption, the improvement in its transient response
characteristics of the IC with a newly deviced phase compensation
circuit made it possible to employ the products of the S-816 Series
even in applications where heavy input variation or load variation is
experienced.
The S-816 Series regulators serve as ideal power supply units for
portable devices when coupled with the SOT-23-5 minipackage,
providing numerous outstanding features, including low current
consumption. Since this series can accommodate an input voltage
of up to 16 V, it is also suitable when operating via an AC adapter.
Seiko Instruments Inc.
Drawing Code
MP005-A
Tape
S-816 Series
MP005-A
Reel
1

Related parts for S-816A34AMC-BAJT2G

S-816A34AMC-BAJT2G Summary of contents

Page 1

... With overcurrent (base current) protection function. (8) Lead-free products Applications • Power supplies for on-board such as battery devices for portable telephones, electronic notebooks, PDAs. • Constant voltage power supplies for cameras, video equipment and portable communications equipment. • Power Supplies for CPUs. ...

Page 2

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR S-816 Series Block Diagram + − ON/ OFF Remark 1. To ensure you power cutoff of the external transistor when the device is powered down, the EXT output is pulled The diode inside the parasitic diode. 2 VIN Current Source Pull-Up ...

Page 3

... Output Voltage (V) 2.5 V±2.0% S-816A25AMC-BAAT2G S-816A26AMC-BABT2G 2.6 V±2.0% 2.7 V±2.0% S-816A27AMC-BACT2G 2.8 V±2.0% S-816A28AMC-BADT2G 2.9 V±2.0% S-816A29AMC-BAET2G 3.0 V±2.0% S-816A30AMC-BAFT2G 3.1 V±2.0% S-816A31AMC-BAGT2G 3.2 V±2.0% S-816A32AMC-BAHT2G S-816A33AMC-BAIT2G 3.3 V±2.0% 3.4 V±2.0% S-816A34AMC-BAJT2G 3.5 V±2.0% S-816A35AMC-BAKT2G 3.6 V±2.0% S-816A36AMC-BALT2G 3.7 V±2.0% S-816A37AMC-BAMT2G 3.8 V±2.0% S-816A38AMC-BANT2G 3.9 V±2.0% S-816A39AMC-BAOT2G S-816A40AMC-BAPT2G 4.0 V±2.0% S-816A41AMC-BAQT2G 4.1 V±2.0% 4.2 V±2.0% S-816A42AMC-BART2G MC - xxx T2 Table 1 ...

Page 4

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR S-816 Series Pin Configuration SOT-23-5 Top view Figure 2 4 Table 2 Pin No. Symbol 1 EXT Output Pin for Base-Current Control 2 VSS GND Pin 3 Shutdown Pin ("H" active) ON/ OFF 4 VIN IC Power Supply Pin 5 VOUT Output Voltage Monitoring Pin Seiko Instruments Inc ...

Page 5

... Storage Temperature *1. When mounted on board [Mounted on board] (1) 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. (1) When mounted on board 700 ...

Page 6

... Shutdown Pin Input Current *1. The characteristics vary with the associated external components. The characteristics given above are those obtained when the IC is combined with a Toshiba Corporation 2SA1213-Y for the PNP transistor and a 10 µF tantalum capacitor for the output capacitor (C 6 Table 4 ...

Page 7

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR Rev.5.1 _00 Test Circuits 1. EXT VIN VOUT A + − ON/ OFF VSS Figure 4 3. EXT VIN VOUT A A ON/ OFF VSS Figure − Seiko Instruments Inc. S-816 Series A EXT VIN VOUT A ON/ OFF VSS Figure 5 ...

Page 8

... The shutdown pin is configured as shown in Figure 8. Since neither pull-up or pull-down is performed internally, please avoid using the pin in a floating state. Also, be sure to refrain from applying a voltage this pin lest the current consumption increase. When this shutdown pin is not used, leave it coupled to the VIN pin ...

Page 9

... PNP transistor) with an overcurrent protection circuit incorporated in the IC, and limits that current (EXT pin sink current). As the load current increases, the EXT pin sink current (base current of the external PNP transistor) also grows larger to maintain the output voltage. The overcurrent protection circuit clamps and limits the EXT pin sink current to the EXT output sink overcurrent set value (I beyond that value ...

Page 10

... ESR in series with the output capacitor, as illustrated in Figure 9. The resistance value that needs to be added will be from 0.1 Ω Ω, but this value may vary depends on the service conditions, and should be defined through careful evaluation in advance. In general, our recommendation is 0.3 Ω ...

Page 11

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR Rev.5.1 _00 Standard Circuit + − ON/ OFF Caution The above connection diagram does not guarantee correct operation. Perform sufficient evaluation using the actual application to set the constant. VIN Current Source Pull-Up Overcurrent Protection Circuit + Sink Error ...

Page 12

... Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. • Make sure that the power dissipation inside the IC due to the EXT output sink current (especially at a high temperature) will not surpass the power dissipation of the package. ...

Page 13

... Figure 11 shows a sample of overcurrent protection implemented with an external circuit connected. The internal overcurrent protection function of the S-816 Series is designed to detect the sink current (base current of the PNP transistor) at the EXT pin, therefore it may not be able to protect the external PNP transistor from collector overcurrents caused by an EXT-GND short-circuiting or other phenomenon occurring outside the IC ...

Page 14

... External Adjustment of Output Voltage The S-816 Series allows you to adjust the output voltage or to set its value over the output voltage range ( the products of this series, when external resistances R illustrated in Figure 13. Moreover, a temperature gradient can be obtained by inserting a thermistor or ...

Page 15

... I median voltage deviation of the output voltage (OUT) will be obtained ÷ ÷ (Maximum value of internal resistance of IC ÷ (Minimum value of internal resistance of IC The closer the output voltage (OUT) and the output voltage set value (V ...

Page 16

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR S-816 Series Typical Characteristics 1. Input Voltage ( Output Voltage ( OUT =50 mA) S-816A30AMC (I OUT 3.10 3.08 3.06 3.04 3.02 V OUT 3.00 (V) 2.98 2.96 2.94 2.92 2. OUT S-816A30AMC (Ta=25°C) 3.10 3.05 3.00 V OUT 2.95 (V) 2.90 I OUT I OUT 2.85 I OUT 2.80 2.8 2.9 3.0 3.1 3.2 2. Output Current ( Output Voltage (V OUT I -V OUT OUT =4 V) ...

Page 17

... S-816A30AMC (V ="H") ON/OFF (µ Input Voltage ( EXT Output Sink Overcurrent Set Value ( MAX S-816A30AMC MAX 16 (mA Characteristics OUT Ta-V S-816A50AMC (V V OUT (V) 25 ...

Page 18

... EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR S-816 Series 6. Input Voltage ( Shutdown Pin Input Voltage ( S-816A30AMC 2.5 2.0 1 (V) 1.0 0.5 0 S-816A30AMC Ta=85°C V Ta=25°C (V) Ta=−40° (V) IN Seiko Instruments Inc Characteristics SL SL 2.5 2.0 1.5 SL 1.0 0.5 0 (V) IN Rev ...

Page 19

... Input Transient Response Characteristics (Power- → S-816A30AMC ( V/div OUT (2 V/div (100 µ s/div) 2. Input Transient Response Characteristics (Supply voltage variation V S-816A30AMC (I =10 mA) OUT (0.5 V/div OUT (20 mV/div (100 µ s/div) S-816A50AMC (I ...

Page 20

... OUT (20 mV/div) t (50 µ s/div S-816A50AMC (V IN 100 mA I OUT (50 mA/div OUT (20 mV/div) t (50 µ s/div) 4. Shutdown Pin Transient Response Characteristics ( S-816A30AMC ( ON/OFF (2 V/div OUT (2 V/div (100 µ s/div ↔ 100 mA, C OUT ...

Page 21

...

Page 22

...

Page 23

...

Page 24

... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of 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 ...

Related keywords