S-1142B30I-E6T1U Seiko Instruments, S-1142B30I-E6T1U Datasheet - Page 15
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S-1142B30I-E6T1U
Manufacturer Part Number
S-1142B30I-E6T1U
Description
IC REG LDO 3V 0.2A HSOP6
Manufacturer
Seiko Instruments
Datasheet
1.S-1142B33I-E6T1U.pdf
(35 pages)
Specifications of S-1142B30I-E6T1U
Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 50V
Voltage - Dropout (typical)
0.72V @ 200mA
Number Of Regulators
1
Current - Output
200mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-SOIC variation (0.154", 3.9mm), 4 Leads + 2 Fins
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
728-1061-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
S-1142B30I-E6T1U
Manufacturer:
SEIKO
Quantity:
20 000
Rev.2.0
Operation
1. Basic operation
2. Output transistor
Figure 11 shows a block diagram of the S-1142 Series.
The error amplifier compares the reference voltage (V
feedback resistors R
not influenced by the input voltage and temperature change to the output transistor.
In the S-1142 Series, a low on-resistance P-channel MOSFET is used as the output transistor.
Be sure that V
current which flows, because of a parasitic diode between the VIN and VOUT pins, when the potential of V
becomes higher than V
_00
OUT
VSS
VIN
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
*1. Parasitic diode
does not exceed V
Constant
current
s
supply
Reference voltage
and R
IN
.
V
ref
circuit
f
. It supplies a gate voltage necessary to maintain a constant output voltage which is
IN
Error amplifier
+ 0.3 V, to prevent the voltage regulator from being damaged due to inverse
−
+
Seiko Instruments Inc.
Figure 11
ref
) with V
fb
, which is the output voltage resistance-divided by
V
R
R
fb
f
s
*1
VOUT
S-1142 Series
OUT
15