S-L2985B30-H4T1 Seiko Instruments, S-L2985B30-H4T1 Datasheet
S-L2985B30-H4T1
Specifications of S-L2985B30-H4T1
Related parts for S-L2985B30-H4T1
S-L2985B30-H4T1 Summary of contents
Page 1
... Low dropout voltage: • Low current consumption: • High peak current capability: • Built-in ON/OFF circuit: • Low ESR capacitor can be used: A ceramic capacitor of 0.47 μF or more can be used for the output • High ripple rejection: • Built-in overcurrent protector: • Lead-free, halogen-free *1 ...
Page 2
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR S-L2985 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
... expressed as 15) *2 Product type A: ON/OFF pin negative logic B: ON/OFF pin positive logic Drawing code Package HB004-A-P-SD HB004-A-C-SD Table 1 WLP-4B S-L2985B15-H4T1 S-L2985B18-H4T1 S-L2985B25-H4T1 S-L2985B26-H4T1 S-L2985B27-H4T1 S-L2985B28-H4T1 S-L2985B29-H4T1 S-L2985B30-H4T1 S-L2985B31-H4T1 S-L2985B32-H4T1 S-L2985B33-H4T1 S-L2985B34-H4T1 S-L2985B35-H4T1 S-L2985B50-H4T1 Seiko Instruments Inc. S-L2985 Series Tape Reel HB004-A-R- ...
Page 4
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR S-L2985 Series Pin Configuration WLP-4B Top view Figure 2 4 Table 2 Pin No. Symbol Description 1 VSS GND pin 2 VOUT Output voltage pin 3 VIN Input voltage pin 4 ON/OFF Shutdown pin Seiko Instruments Inc. Rev.3.0 _00 ...
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) ...
Page 6
... The change in temperature of the output voltage *2. 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. 6 Table 4 ...
Page 7
... HIGH RIPPLE-REJECTION WLP PACKAGE 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 ...
Page 8
... Check that no oscillation occurs with the application using the above capacitor. 8 Input VIN VOUT ON/OFF * VSS Single GND * capacitor for stabilizing the input. IN *2. A ceramic capacitor of 0.47 μF or more can be used for C Figure 9 1.0 μF or more 0.47 μF or more 10 Ω or less Seiko Instruments Inc. Rev.3.0 Output * GND . L ...
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 WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR S-L2985 Series 7. Temperatur e coefficien The shadowed area in Figure 10 is the range where V when the temperature coefficient of the output voltage is ±100 ppm/° change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ OUT ° = ...
Page 11
... The S-L2985 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
... In this package, the overcoat of the resin of translucence is carried out on the side of device. Keep it mind that it may affect the characteristic of a device when exposed a device in the bottom of a high light source. ...
Page 14
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR S-L2985 Series Typical Characteristics (1) Output Voltage vs. Output current (when load current increases) S-L2985B15 (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-L2985B50 (Ta = 25°C) ...
Page 15
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 (3) Dropout voltage vs. Output current S-L2985B15 0.45 0.40 85°C 0.35 0.30 0.25 0.20 0.15 0.10 0. 100 I [mA] OUT S-L2985B50 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 ...
Page 16
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR S-L2985 Series (5) Output voltage vs. Ambient temperature S-L2985B15 1.60 1.55 1.50 1.45 1.40 –50 – [°C] S-L2985B50 5.3 5.2 5.1 5.0 4.9 4.8 4.7 –50 – [°C] (6) Current consumption vs. Input voltage S-L2985B15 120 ...
Page 17
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 (7) Ripple rejection S-L2985B15 (Ta = 25° 0.47 μ OUT 100 100 1k 10k Frequency [Hz] S-L2985B50 (Ta = 25° 0.47 μ OUT 100 100 1k 10k Frequency [Hz] S-L2985B30 (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-L2985B50 (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-L2985B15 (Ta = 25° ...
Page 19
... HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.3.0 _00 (3) ON/OFF pin transient response characteristics S-L2985B15 (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 t [ms] S-L2985B30 (Ta = 25°C) = 100 OUT ...
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. ...