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Part: S-L2985B15-H4T1
Category:
Power Management
-> Regulators
-> Voltage Regulators
Description: Features = RR 80dB WLP-4B ;; Input Voltage = 2.0-6.5V ;; Output Voltage = 1.5-5.5V ;; Output Current = 150 ma ;; Accuracy = ±1.0% ;; Current Consumption Typ. = 50 µA ;; Current Consumption Standby = 0.1 µA ;; Dropout Voltage = 190mV @100mA ;; Condition = Vout=3.0V, Vin=4V ;; Package (Power Dissipation) = WLP-4B (225mW) ;; Note = Ceramic 0.47 µF
Company: Seiko Instruments
Datasheet: Download S-L2985B15-H4T1 datasheet File size : 150 kB
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Datasheet text preview:
Rev.1.0_00
HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2985 Series
The S-L2985 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. A super-small WLP-4B package realizes high-density mounting.
Features
1.5 V to 5.5 V, selectable in 0.1 V steps. ±1.0% 190 mV typ. (3.0 V output product, IOUT = 100 mA) During operation: 50 µA typ., 90 µA max. During shutdown: 0.1 µA typ., 1.0 µA max. *1 · High peak current capability: 150 mA output is possible (@ VIN VOUT(S) + 1.0 V) Ensures long battery life. · 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 capacitor. 80 dB typ. (@ 1.0 kHz) · High ripple rejection: Overcurrent of output transistor can be restricted. · Built-in overcurrent protector: WLP-4B · Super-small package: *1. Attention should be paid to the power dissipation of the package when the output current is large. · Output voltage: · High-accuracy output voltage: · Low dropout voltage: · Low current consumption:
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
Package
· WLP-4B (Package drawing code: HB004-A)
Seiko Instruments Inc.
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HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.1.0_00 S-L2985 Series Block Diagram
*1
VIN
Overcurrent protector
VOUT
ON/OFF
ON/OFF circuit
+ -
Reference voltage circuit
VSS
*1. Parasitic diode
Figure 1
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Seiko Instruments Inc.
HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.1.0_00 S-L2985 Series Product Code Structure
· The product types, output voltage and package name for the S-L2985 Series can be selected at the user's request. Refer to the "Product name" for the meanings of the characters in the product name and "Product name list" for the full product names. 1. Product name S-L2985 x xx - H4T1
Package name (abbreviation) and packing specifications H4T1: WLP-4B, Tape
*1
Output voltage 15 to 55 (E.g., when the output voltage is 1.5 V, it is expressed as 15) Product type A: ON/OFF pin negative logic B: ON/OFF pin positive logic *1. Refer to the taping specifications at the end of this book. *2. Refer to 3. Shutdown (ON/OFF pin) under the Operation. 2. Product name list Table 1 Output voltage WLP-4B 1.5V±1.0% S-L2985B15-H4T1 1.8V±1.0% S-L2985B18-H4T1 2.5V±1.0% S-L2985B25-H4T1 2.6V±1.0% S-L2985B26-H4T1 2.7V±1.0% S-L2985B27-H4T1 2.8V±1.0% S-L2985B28-H4T1 2.9V±1.0% S-L2985B29-H4T1 3.0V±1.0% S-L2985B30-H4T1 3.1V±1.0% S-L2985B31-H4T1 3.2V±1.0% S-L2985B32-H4T1 3.3V±1.0% S-L2985B33-H4T1 3.4V±1.0% S-L2985B34-H4T1 3.5V±1.0% S-L2985B35-H4T1 5.0V±1.0% S-L2985B50-H4T1 Remark Please contact the SII marketing department for products with an output voltage other than those specified above or type A products.
*2
Seiko Instruments Inc.
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