S-1323B27NB-N8MTFG

Manufacturer Part NumberS-1323B27NB-N8MTFG
DescriptionIC REG LDO 150MA 2.7V SC-82AB
ManufacturerSeiko Instruments
S-1323B27NB-N8MTFG datasheet
 


Specifications of S-1323B27NB-N8MTFG

Regulator TopologyPositive FixedVoltage - Output2.7V
Voltage - InputUp to 6.5VVoltage - Dropout (typical)0.5V @ 150mA
Number Of Regulators1Current - Output150mA (Min)
Operating Temperature-40°C ~ 85°CMounting TypeSurface Mount
Package / CaseSC-70-4, SC-82-4, SOT-323-4, SOT-343Number Of Outputs1
PolarityPositiveInput Voltage Max6.5 V
Output Voltage2.7 VOutput TypeFixed
Dropout Voltage (max)0.65 V at 150 mAOutput Current150 mA
Line Regulation0.1 % / VLoad Regulation40 mV
Voltage Regulation Accuracy1 %Maximum Power Dissipation0.4 W
Maximum Operating Temperature+ 85 CMounting StyleSMD/SMT
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Limit (min)-  
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© Seiko Instruments Inc., 2002-2010
The S-1323 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, and
low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in
overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor.
An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional
CMOS process, a larger variety of capacitors are available, including small ceramic capacitors. Small SNT-4A
and SC-82AB packages realize high-density mounting.
Features
• Output voltage:
• High-accuracy output voltage:
• Low current consumption:
• High peak current capability:
• Built-in ON/OFF circuit:
• Low ESR capacitor can be used: A ceramic capacitor of 1.0 μF or more can be used for the output
• High ripple rejection:
• Built-in overcurrent protector:
• Lead-free, Sn 100%, halogen-free
*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
• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric/electronic appliances
• Power supply for cellular phones
Packages
• SNT-4A
• SC-82AB
HIGH RIPPLE-REJECTION AND SMALL PACKAGE
CMOS VOLTAGE REGULATOR
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
During operation: 70 μA typ., 90 μA max.
During shutdown: 0.1 μA typ., 1.0 μA max.
150 mA output is possible (at V
Ensures long battery life.
capacitor.
70 dB typ. (at 1.0 kHz)
Overcurrent of output transistor can be restricted.
*2
Seiko Instruments Inc.
S-1323 Series
Rev.5.0
≥ V
+ 1.0 V)
*1
IN
OUT(S)
_00
1

S-1323B27NB-N8MTFG Summary of contents

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    ... Low current consumption: • High peak current capability: • Built-in ON/OFF circuit: • Low ESR capacitor can be used: A ceramic capacitor of 1.0 μF or more can be used for the output • High ripple rejection: • Built-in overcurrent protector: • Lead-free, Sn 100%, halogen-free *1. Attention should be paid to the power dissipation of the package when the output current is large. *2. Refer to “ ...

  • Page 2

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR S-1323 Series Block Diagram VIN ON/OFF VSS *1. Parasitic diode 2 Overcurrent protector + ON/OFF − circuit Reference voltage circuit Figure 1 Seiko Instruments Inc. Rev.5.0 _00 *1 VOUT ...

  • Page 3

    ... Product Name Structure The product types, output voltage and request. Refer to the “1. Product name” for the meanings of the characters in the product name, “2. Package” regarding the package drawings and “3. Product name list” for the full product names. ...

  • Page 4

    ... Remark 1. Please contact the SII marketing department for type A products Please select products of environmental code = U for Sn 100%, halogen-free products. 4 Table 1 SNT-4A S-1323B15PF-N8ATFx S-1323B15NB-N8ATFx S-1323B16PF-N8BTFx S-1323B16NB-N8BTFx S-1323B17PF-N8CTFx S-1323B17NB-N8CTFx ...

  • Page 5

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 Pin Configurations SNT-4A Top view Figure 2 SC-82AB Top view Figure 3 Table 2 Pin No. Symbol Description 1 VOUT Output voltage pin 2 VIN Input voltage pin 3 ON/OFF Shutdown pin 4 VSS Table 3 Pin No. Symbol Description 1 VOUT ...

  • Page 6

    ... 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. (1) When mounted on board 500 ...

  • Page 7

    ... Specified output voltage *3. Output voltage temperature coefficient *5. The output current can be at least this value. Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large. This specification is guaranteed by design. ...

  • Page 8

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR S-1323 Series Test Circuits 1. Set to power VIN VOUT + V ON/OFF VSS Figure VIN VOUT ON/OFF VSS Set GND IN Figure 6 + VIN VOUT A ON/OFF VSS Set to power ON Figure 7 VOUT VIN + A ON/OFF V VSS Figure 8 VIN VOUT + V ON/OFF ...

  • Page 9

    ... Check that no oscillation occurs with the application using the above capacitor. Input VIN VOUT *1 ON/OFF C IN VSS Single GND * capacitor for stabilizing the input. IN *2. A ceramic capacitor of 1.0 μF or more can be used in C Figure 10 1.0 μF or more 1.0 μF or more 10 Ω or less Seiko Instruments Inc. S-1323 Series Output * GND . ...

  • Page 10

    ... S-1323 Series Explanation of Terms 1. Low dropout voltage regulator The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in low on-resistance transistor. 2. Low ESR A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1323 Series enables use of a low ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C 10 Ω ...

  • Page 11

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 7. Temperatur e coefficien The shadowed area in Figure 11 is the range where V when the temperature coefficient of the output voltage is ±100 ppm/° OUT(E) * change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ ° = OUT * mV/ C ...

  • Page 12

    ... S-1323 Series Operation 1. Basic operation Figure 12 shows the block diagram of the S-1323 Series. The error amplifier compares the reference voltage (V divided by feedback resistors R to ensure a certain output voltage free of any fluctuations of input voltage and temperature. VIN Current supply V ref Reference voltage VSS *1 ...

  • Page 13

    ... 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 state. In addition, note that the current consumption increases if a voltage of 0 used, connect it to the VSS pin if the logic type is “A” and to the VIN pin “B”. Logic Type ON/OFF Pin A “ ...

  • Page 14

    ... When mounting an output capacitor between the VOUT and VSS pins (C the input between VIN and VSS pins (C short as possible. • Note that the output voltage may increase when a series regulator is used at low load current (1 less). • Generally a series regulator may cause oscillation, depending on the selection of external parts. The following conditions are recommended for this IC ...

  • Page 15

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 Characteristics (Typical Data) (1) Output Voltage vs. Output current (when load current increases) S-1323B15 (Ta = 25°C) 2.0 1 1.0 2 100 200 I [mA] OUT S-1323B50 (Ta = 25° 100 200 I [mA] OUT (2) Output voltage vs. Input voltage S-1323B15 (Ta = 25° ...

  • Page 16

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR S-1323 Series (3) Dropout voltage vs. Output current S-1323B15 0.6 0.5 85°C 0.4 0.3 0.2 0 100 I [mA] OUT S-1323B50 0.6 0.5 85°C 0.4 0.3 0.2 0 100 I [mA] OUT (4) Output voltage vs. Ambient temperature S-1323B15 1.60 1.55 1 ...

  • Page 17

    ... HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR Rev.5.0 _00 (5) Current consumption vs. Input voltage S-1323B15 120 100 80 25°C 85° [V] IN S-1323B50 120 –40°C 100 80 25°C 85° [V] IN (6) Ripple rejection S-1323B15 (Ta = 25° 1.0 μ OUT 100 150 mA 20 ...

  • Page 18

    ... Reference Data (1) Input transient response characteristics = 30 mA 5.0 μ 0.47 μ OUT OUT 3.04 3. 3.02 3.01 V OUT 3.00 2.99 2.98 -20 - [μ mA 5.0 μ 2.2 μ OUT OUT 3.04 3. 3.02 3.01 V OUT 3.00 2.99 2.98 -20 - [μs] (2) Load transient response characteristics = 4 0.47 μ 1.0 μ ...

  • Page 19

    ... S-1323B50 (Ta = 25° 1.0 μ 1.0 μ OUT ON/OFF OUT 0 –1 - [μs] S-1323B30 (Ta = 25°C) = 1.0 μ 1.0 μ –1 –2 – 1.0 μ –2 –4 –6 – Seiko Instruments Inc. S-1323 Series = 1.0 μ 1.0 μF OUT ON/OFF ...

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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. ...