S-1170B40UC-OTZTFG Seiko Instruments, S-1170B40UC-OTZTFG Datasheet

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S-1170B40UC-OTZTFG

Manufacturer Part Number
S-1170B40UC-OTZTFG
Description
IC REG LDO 800MA 4V SOT89-5
Manufacturer
Seiko Instruments
Datasheet

Specifications of S-1170B40UC-OTZTFG

Regulator Topology
Positive Fixed
Voltage - Output
4V
Voltage - Input
Up to 6.5V
Voltage - Dropout (typical)
0.12V @ 300mA
Number Of Regulators
1
Current - Output
800mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-89-5
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6.5 V
Output Voltage
4 V
Output Type
Fixed
Dropout Voltage (max)
0.18 V at 300 mA
Output Current
800 mA
Line Regulation
0.3 % / V
Load Regulation
100 mV
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
1 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
www.sii-ic.com
© Seiko Instruments Inc., 2003-2010
The S-1170 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, a built-in
overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor,
and a built-in thermal shutdown circuit prevents damage caused by the heat. 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 SOT-89-5 and 6-Pin HSON(A) packages
realize high-density mounting.
Features
Applications
Packages
• Output voltage:
• High-accuracy output voltage:
• Low dropout voltage:
• Low current consumption:
• High current capability:
• Built-in ON/OFF circuit:
• Low ESR capacitor can be used: A ceramic capacitor of 4.7 μF or more can be used for the output
• High ripple rejection:
• Built-in overcurrent protector:
• Built-in thermal shutdown circuit: Damage caused by heat can be prevented.
• 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.
• Power supply for DVD and CD-ROM drives
• Power supply for battery-powered devices
• Power supply for personal communication device
• Power supply for note PCs
• SOT-89-5
• 6-Pin HSON(A)
HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
*2
120 mV typ. (3.0 V output product, I
During operation: 80 μA typ., 160 μA max.
800 mA output is possible (at V
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
During shutdown: 0.1 μA typ., 1.0 μA max.
Ensures long battery life.
capacitor.
70 dB typ. (at 1.0 kHz)
Overcurrent of output transistor can be restricted.
Seiko Instruments Inc.
HIGH RIPPLE-REJECTION AND LOW DROPOUT
IN
≥ V
OUT
OUT(S)
= 300 mA)
+ 1.0 V)
S-1170 Series
*1
Rev.4.0
_00
1

Related parts for S-1170B40UC-OTZTFG

S-1170B40UC-OTZTFG Summary of contents

Page 1

... Low current consumption: • High current capability: • Built-in ON/OFF circuit: • Low ESR capacitor can be used: A ceramic capacitor of 4.7 μF or more can be used for the output • High ripple rejection: • Built-in overcurrent protector: • Built-in thermal shutdown circuit: Damage caused by heat can be prevented. ...

Page 2

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series Block Diagram VIN ON/OFF VSS *1. Parasitic diode 2 Overcurrent protector Thermal shutdown circuit + ON/OFF − circuit Reference voltage circuit Figure 1 Seiko Instruments Inc. Rev.4.0 *1 VOUT _00 ...

Page 3

... Product Name Structure • The product types, output voltage, and package types for the S-1170 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 HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series (2) 6-Pin HSON(A) S-1170 − 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

... V ±1.0% 5.1 V ±1.0% 5.2 V ±1.0% 5.3 V ±1.0% 5.4 V ±1.0% 5.5 V ±1.0% Remark 1. Please contact the SII marketing department for products with an output voltage other than those specified above or type A products Please select products of environmental code = U for Sn 100%, halogen-free products. Table 1 ...

Page 6

... VSS. Figure 3 6 Table 2 Pin No. Symbol 1 ON/OFF 2 VSS * VIN 5 VOUT *1. The NC pin is electrically open. The NC pin can be connected to VIN or VSS. Table 3 Pin No. Symbol *1 1 VOUT *1 2 VOUT 3 ON/OFF 4 VSS *2 5 VIN *2 6 VIN *1. Short pins 1 and 2. *2. ...

Page 7

... Storage temperature *1. At mounted on printed circuit board [Mounted board] (1) Board size : (2) Cu wiring shear : 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. Power Dissipation P Figure 4 Power Dissipation of Package (Mounted on Printed Circuit Board) Caution Thermal shutdown circuit may operate when junction temperature is 150 ° ...

Page 8

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series Electrical Characteristics Parameter Symbol *1 Output voltage V OUT(E) *2 Output current I OUT *3 Dropout voltage V drop ΔV OUT1 Line regulation ΔV •V IN ΔV Load regulation OUT2 ΔV Output voltage OUT *4 ΔTa•V ...

Page 9

... 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 10

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 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 ...

Page 11

... A ceramic capacitor with a capacitance of 4.7 μF or more provides a stable operation in all temperature ranges. When using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, a ceramic capacitor with a capacitance of 4.7 μF or more and an ESR of 0.5 Ω or less is required. The output overshoot and undershoot values, which are transient response characteristics, vary depending on the output capacitor value ...

Page 12

... S-1170 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-1170 Series enables use of a low ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C 0.5 Ω ...

Page 13

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 7. Temperatur e coefficien t of The shadowed area in Figure 11 is the range where V when the temperature coefficient of the output voltage is ±150 ppm/°C. V OUT(E) * change in the temperature of the output voltage [mV/°C] is calculated using the following equation. Δ OUT 1 * ° OUT(S) Δ ...

Page 14

... Figure 12 shows the block diagram of the S-1170 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. 2. Output transistor The S-1170 Series uses a low on-resistance P-channel MOS FET as the output transistor. ...

Page 15

... 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 16

... When the junction temperature drops to 120°C (typ.), the thermal shutdown circuit is released and the regulator operation resumes. If the thermal shutdown circuit starts operating due to self-heating, the regulator operation stops and the output voltage falls. When the regulator operation has stopped, no self-heat is generated and the temperature of the IC is lowered ...

Page 17

... 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 18

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series Typical Characteristics (1) Output Voltage vs. Output current (when load current increases) S-1170B15 (Ta = 25°C) 1.8 1.6 1.4 1 1.0 IN 0.8 0.6 6.5 V 0.4 0 200 400 600 I [mA] OUT S-1170B50 (Ta = 25°C) ...

Page 19

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 (3) Dropout voltage vs. Output current S-1170B15 0.9 0.8 0.7 85°C 0.6 0.5 0.4 0.3 0.2 0 100 200 300 400 500 I [mA] OUT S-1170B50 0.6 0.5 0.4 85°C 0.3 0.2 0.1 ...

Page 20

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series (5) Output voltage vs. Ambient temperature = 10 mA) S-1170B15 (I OUT 1.70 1.65 1.60 1.55 1.50 1.45 1.40 1.35 1.30 −40 − [° mA) S-1170B50 (I OUT 5.20 5.15 5.10 5.05 5.00 4.95 4.90 4.85 4.80 − ...

Page 21

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 (7) Ripple rejection S-1170B15 (Ta = 25° 4.7 μ OUT 100 = OUT 80 60 100 100 10k Frequency [Hz] S-1170B50 (Ta = 25° 4.7 μ OUT 100 = OUT 60 100 10k 10 100 Frequency [Hz] S-1170B30 (Ta = 25° ...

Page 22

... C = 4.7 μ OUT OUT 1.62 1.60 1. 1.56 1.54 1.52 V OUT 1.50 1.48 1.46 −20 − [μs] S-1170B50 = 100 mA 5.0 μ 4.7 μ OUT OUT 5.12 5. 5.08 5.06 5.04 5.02 V OUT 5.00 4.98 4.96 −20 − [μs] (2) Load transient response characteristics S-1170B15 (Ta = 25° ...

Page 23

... HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR Rev.4.0 _00 (3) Shutdown pin transient response characteristics S-1170B15 (Ta = 25° 4.7 μ 4.7 μ OUT ON/OFF OUT 0 −1 − [μs] S-1170B50 (Ta = 25° 4.7 μ 4.7 μ OUT ON/OFF OUT 1 −1 − ...

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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. ...

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