S-1131B50UC-N5JTFG Seiko Instruments, S-1131B50UC-N5JTFG Datasheet
S-1131B50UC-N5JTFG
Specifications of S-1131B50UC-N5JTFG
Related parts for S-1131B50UC-N5JTFG
S-1131B50UC-N5JTFG Summary of contents
Page 1
... 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 DVD and CD-ROM drives • ...
Page 2
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1131 Series Block Diagrams (1) Without shutdown function (Package : SOT-89-3) VIN VSS *1. Parasitic diode (2) With shutdown function (Package : SOT-89-5, 6-Pin HSON(A)) VIN ON/OFF VSS *1. Parasitic diode 2 *1 Overcurrent protector + − Reference voltage circuit ...
Page 3
... The product types, output voltage and packages for the S-1131 Series can be selected at the user’s 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
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1131 Series (2) 6-Pin HSON(A) S-1131 − xxx TF x *1. Refer to the tape specifications at the end of this book. *2. Refer to the “Product name list”. *3. Refer to 3. Shutdown pin (ON/OFF pin) in the “Operation”. 2. Package ...
Page 5
... S-1131B52UA-N5LTFx 5.3V±1.0% S-1131B53UA-N5MTFx 5.4V±1.0% S-1131B54UA-N5NTFx 5.5V±1.0% S-1131B55UA-N5OTFx 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. Table 1 SOT-89-3 SOT-89-5 S-1131B15UC-N4ATFx S-1131B16UC-N4BTFx S-1131B17UC-N4CTFx S-1131B18UC-N4DTFx S-1131B19UC-N4ETFx S-1131B20UC-N4FTFx S-1131B21UC-N4GTFx ...
Page 6
... VIN Input voltage pin Table 3 Pin No. Symbol 1 VOUT Output voltage pin 2 VSS * connection 4 ON/OFF Shutdown pin 5 VIN Input voltage pin *1. The NC pin is electrically open. The NC pin can be connected to VIN or VSS. Seiko Instruments Inc. Rev.4.0 Description GND pin Description GND pin _00 ...
Page 7
... SOT-89-3 Power SOT-89-5 dissipation 6-Pin HSON(A) Operating ambient temperature Storage temperature 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. Table 4 Pin No. Symbol 1 VOUT Output voltage pin ...
Page 8
... 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 9
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 Test Circuits 1. VIN ON/OFF Set to power on Figure VIN ON/OFF Set GND IN Figure 7 3. VIN ON/OFF Set to power on Figure 8 4. VIN + A ON/OFF Figure 9 5. VIN ON/OFF Set to power on Figure 10 *1. In case of product with shutdown function. ...
Page 10
... Perform thorough evaluation using the actual application to set the constant. Application Conditions 1.0 μ more Input capacitor ( 2.2 μ more (tantalum capacitor) Output capacitor ( Caution A general series regulator may oscillate, depending on the external components selected. Check that no oscillation occurs with the application using the above capacitor. 10 Input VIN VOUT *2 ON/OFF *1 C ...
Page 11
... Load regulation (ΔV ) OUT2 Indicates the dependency of the output voltage on the output current. That is, the value shows how much the output voltage changes due to a change in the output current with the input voltage remaining unchanged. 5. Dropout voltage (V ) drop Indicates the difference between the input voltage V ...
Page 12
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1131 Series 6. Temperatur e coefficien t The shadowed area in Figure 12 is the range where V when the temperature coefficient of the output voltage is ±100 ppm/°C. V OUT(E)1 * change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ OUT ° = mV/ C ...
Page 13
... Operation 1. Basic operation Figure 13 shows the block diagram of the S-1131 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 VSS *1. 2. Output transistor The S-1131 Series uses a low on-resistance P-channel MOS FET as the output transistor. ...
Page 14
... The structure of the ON/OFF pin is as shown in Figure 14. 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 15
... 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). • This IC performs phase compensation by using an internal phase compensator and the ESR of an output capacitor. Therefore, always place a capacitor of 2.2 μ ...
Page 16
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1131 Series Characteristics (Typical Data) (1) Output voltage vs. Output current (when load current increases) S-1131B15 (Ta = 25°C) 2 1 200 400 I [mA] OUT S-1131B50 (Ta = 25° 200 400 I [mA] OUT (2) Output voltage vs ...
Page 17
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 (3) Dropout voltage vs. Output current S-1131B15 1.0 0.8 85°C 0.6 0.4 0 100 150 200 250 I [mA] OUT S-1131B50 1.0 0.8 0.6 85°C 0.4 0 100 200 250 150 I [mA] OUT (4) Dropout voltage vs. Set output voltage ...
Page 18
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1131 Series (5) Output voltage vs. Ambient temperature S-1131B15 1.6 1.55 1.5 1.45 1.4 −40 − [°C] S-1131B50 5.1 5.08 5.06 5.04 5.02 5 4.98 4.96 4.94 4.92 4.9 −40 0 − [°C] (6) Current consumption vs. Input voltage ...
Page 19
... HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 (7) Ripple rejection S-1131B15 (Ta = 25° 2.2 μ OUT 100 100 Frequency [Hz] S-1131B50 (Ta = 25° 2.2 μ OUT 100 100 Frequency [Hz] S-1131B30 (Ta = 25° 100 OUT 100 OUT 100 Seiko Instruments Inc. ...
Page 20
... OUT IN 2 ON/OFF 1.5 1 0.5 0 -0.5 - [μs] S-1131B50 (Ta = 25° 2.2 μ 1.0 μ OUT ON/OFF - [μ μ mA 5.0 μ OUT 6 3.02 5 3.015 4 3.01 3 3.005 V 2 OUT 1 2.995 0 2. OUT 150 100 OUT -50 V OUT -100 -150 S-1131B30 (Ta = 25° OUT ...
Page 21
...
Page 22
...
Page 23
...
Page 24
...
Page 25
...
Page 26
...
Page 27
...
Page 28
...
Page 29
...
Page 30
... 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. ...