S-T111B27MC-OGMTFG Seiko Instruments, S-T111B27MC-OGMTFG Datasheet
![no-image](/images/manufacturer_photos/0/5/590/seiko_instruments_sml.jpg)
S-T111B27MC-OGMTFG
Specifications of S-T111B27MC-OGMTFG
Related parts for S-T111B27MC-OGMTFG
S-T111B27MC-OGMTFG Summary of contents
Page 1
... Low current consumption: • High peak current capability: • Built-in ON/OFF circuit: • Low ESR capacitor can be used: A ceramic capacitor of 0.1 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 LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series Block Diagram VIN ON/OFF VSS *1. Parasitic diode 2 *1 Overcurrent protector + ON/OFF circuit − Reference voltage circuit Figure 1 Seiko Instruments Inc. Rev.3.0 _00 VOUT ...
Page 3
... Product Name Structure • The product types and output voltage for the S-T111 Series can be selected at the user’s request. 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 4
... Remark 1. Please contact our sales office for products with type Please select products of environmental code = U for Sn 100%, halogen-free products. 4 Table 1 Product Name S-T111B15MC-OGATFx S-T111B16MC-OGBTFx S-T111B17MC-OGCTFx S-T111B18MC-OGDTFx S-T111B19MC-OGETFx ...
Page 5
... 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 3 Power Dissipation of Package (When Mounted on Board) Table 2 Pin No ...
Page 6
... 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 7
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 Test Circuits 1. Set to power Set to power Set to Power VIN VOUT + V ON/OFF VSS Figure 4 A VIN VOUT ON/OFF VSS Set GND IN Figure 5 + VIN VOUT A V ON/OFF VSS Figure 6 VOUT VIN + + ON/OFF V VSS Figure 7 ...
Page 8
... However, when using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, a ceramic capacitor with a capacitance of 0.1 μF or more and an ESR of 10 Ω or less is required. The value of the output overshoot or undershoot transient response varies depending on the value of the output capacitor. The required capacitance of the input capacitor differs depending on the application. ...
Page 9
... V IN Indicates the dependency of the output voltage on the input voltage. That is, the values show how much the output voltage changes due to a change in the input voltage with the output current remaining unchanged. 5. Load regulation (ΔV ) OUT2 Indicates the dependency of the output voltage on the output current. That is, the values show how much the output voltage changes due to a change in the output current with the input voltage remaining unchanged ...
Page 10
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series 7. Temperature Coefficient of Output Voltage The shadowed area in Figure 10 is the range where V when the temperature coefficient of the output voltage is ±100 ppm/°C. V OUT(E) * change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ ° = ...
Page 11
... The S-T111 Series uses a low on-resistance P-channel MOS FET as the output transistor. Be sure that V does not exceed V OUT to inverse current flowing from the VOUT pin through a parasitic diode to the VIN pin. ) with V ref and supplies the output transistor with the gate voltage necessary ...
Page 12
... The structure of the ON/OFF pin is as shown in Figure 12. 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 13
... 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 14
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series Typical Characteristics (1) Output Voltage vs. Output current (when load current increases) S-T111B15 (Ta = 25°C) 1.8 1.6 1.4 1.2 6.5 V 1 0.8 0.6 0.4 0 100 200 300 I [mA] OUT S-T111B50 (Ta = 25° 6.5 V ...
Page 15
... I [mA] OUT S-T111B50 0.45 0.40 0.35 85°C 0.30 0.25 0.20 0.15 0.10 0. 100 I [mA] OUT (4) Dropout voltage vs. Set output voltage 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0. [V] OTA S-T111B30 0.45 0.40 25°C 0.35 0.30 0.25 –40°C 0.20 ...
Page 16
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series (5) Output voltage vs. Ambient temperature S-T111B15 1.60 1.55 1.50 1.45 1.40 –50 – [°C] S-T111B50 5.3 5.2 5.1 5.0 4.9 4.8 4.7 – –50 Ta [°C] (6) Current consumption vs. Input voltage S-T111B15 120 100 80 25°C 60 85° ...
Page 17
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 (7) Ripple rejection S-T111B15 (Ta = 25° 0.47 μ OUT 100 100 1k 10k Frequency [Hz] S-T111B50 (Ta = 25° 0.47 μ OUT 100 100 1k 10k Frequency [Hz] S-T111B30 (Ta = 25° 100 = OUT 100k OUT 100k 1M Seiko Instruments Inc. ...
Page 18
... C I OUT OUT 1.62 1.60 1. 1.56 1.54 1.52 V OUT 1.50 1.48 1.46 -40 - 100 120 140 160 t [μs] S-T111B50 (Ta = 25° mA 5.0 μ 0.47 μ OUT OUT 5.12 5. 5.08 5.06 5.04 5.02 V OUT 5.00 4.98 4.96 -40 - 100 120 140 160 t [μs] (2) Load transient response characteristics S-T111B15 (Ta = 25° ...
Page 19
... HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 (3) Shutdown pin transient response characteristics S-T111B15 (Ta = 25° 0.47 μ 1.0 μ OUT ON/OFF OUT 0 –1 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 t [ms] S-T111B30 (Ta = 25°C) = 100 OUT –1 – ...
Page 20
...
Page 21
...
Page 22
...
Page 23
... 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. ...