Datasheet
CMOS LDO Regulator for Portable Equipments
High Ripple Rejection,
Low Current Consumption,
Versatile Package
FULL CMOS LDO Regulator (500mA)
BUXXTH5WNVX
General Description
BUXXTH5WNVX is high-performance FULL CMOS
regulator with 500-mA output, which is mounted on
versatile package SSON004X1010 (1.00mm
×
1.00 mm
×
0.60mm). It has excellent ripple rejection, noise
characteristics and load responsiveness characteristics
despite its low circuit current consumption of 10µA. It is
most appropriate for various applications such as power
supplies for logic IC, RF, and camera modules.
Key Specifications
Load Current:
Accuracy output voltage:
Power Supply rejection Ratio:
Low current consumption:
Operating temperature range:
500mA
±1.0%
80dB@1KHz
10µA (TYP)
-20°C to +85°C
Applications
Smartphone, Battery-powered portable equipment, etc.
Features
High accuracy detection
High ripple rejection
low current consumption
Compatible with small ceramic capacitor
(Cin=Co=1.0uF)
With built-in output discharge circuit
ON/OFF control of output voltage
With built-in over current protection circuit
Package
SSON004X1010 :
1.00mm x 1.00mm x 0.60mm
Typical Application Circuit
CE
V
IN
1.0µF
CE
V
IN
V
OUT
V
OUT
1.0µF
GND
GND
Figure 1. Application Circuit
GND
○Product
structure：Silicon monolithic integrated circuit
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© 2014 ROHM Co., Ltd. All rights reserved.
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product is not designed for protection against radioactive rays
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BUXXTH5WNVX
Connection Diagram
SSON004X1010
4 VIN
TOP VIEW
3 CE
LOT Number
reverse FIN
BOTTOM VIEW
1 VOUT
2 GND
Datasheet
Part Number Marking
1 VOUT
2 GND
1PIN MARK
4 VIN
3 CE
Pin Descriptions
PIN No.
1
2
3
4
reverse
SSON004X1010
Symbol
Function
VOUT
Output Voltage
GND
Grounding
ON/OFF control of output voltage
CE
(High: ON, Low: OFF)
VIN
Power Supply Voltage
FIN
Substrate (Connect to GND)
Ordering Information
B
Part
Number
U
X
X
T
H
5
W
N
V
X
-
1
None:
Chip Rev.1
1:
Chip Rev.2
(XX=1A,12)
T
L
Output Voltage
1A : 1.05V
⇓
35 : 3.50V
High Ripple Rejection
Maximum Output Current
500mA
with
Package
output discharge NVX : SSON004X1010
Packageing and forming specification
Embossed tape and reel
TL : The pin number 1 is the lower left
SSON004X1010
1.0±0.1
1.0±0.1
<Tape and Reel information>
Tape
Quantity
S
+0.03
0.02
−0.02
(0.12)
1PIN MARK
Embossed carrier tape
5000pcs
TL
The direction is the 1pin of product is at the lower left when you hold
0.6MAX
Direction
of feed
0.05
(
reel on the left hand and you pull out the tape on the left hand
)
0.32±0.1
±
48
0.
0.
05
0.65±0.05
1
2
3-C0.18
R0.05
45º
0.07±0.1
0.25±0.1
0.
48
±
0
4
3
0.25±0.05
1pin
Direction of feed
.0
5
(Unit : mm)
Reel
∗
Order quantity needs to be multiple of the minimum quantity.
Lineup
Marking
Output
Voltage
Part
Number
Di
1.05V
BU1ATH5WNVX-1
Ci
1.20V
BU12TH5WNVX-1
6i
2.85V
BU2JTH5WNVX
Ai
3.50V
BU35TH5WNVX
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BUXXTH5WNVX
Absolute Maximum Ratings (Ta=25°C)
PARAMETER
Symbol
VMAX
Pd
TjMAX
Topr
Tstg
Limit
-0.3 to +6.5
560
(Note1)
Datasheet
Unit
V
mW
°C
°C
°C
Power Supply Voltage
Power Dissipation
Maximum junction temperature
Operating Temperature Range
Storage Temperature Range
+125
-20 to +85
-55 to +125
(Note1) Pd deleted at 5.6mW/°C at temperatures above Ta=25°C, mounted on 70×70×1.6 mm glass-epoxy PCB.
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the
absolute maximum ratings.
RECOMMENDED OPERATING RANGE (not to exceed Pd)
PARAMETER
Power Supply Voltage
Maximum Output Current
Symbol
VIN
IMAX
Limit
1.7 to 6.0
500
Unit
V
mA
OPERATING CONDITIONS
PARAMETER
Input Capacitor
Output Capacitor
(
Note2) Make sure that
Symbol
Cin
Co
MIN.
1.0
(Note2)
1.0
(Note2)
TYP.
-
-
MAX.
-
-
Unit
µF
µF
CONDITION
Ceramic capacitor recommended
the output capacitor value is not kept lower than this specified level across a variety of temperature, DC bias, changing as time
progresses characteristic.
Electrical Characteristics
(Ta=25°C, V
IN
= V
OUT
+1.0V, C
IN
=1.0µF, Co=1.0µF, unless otherwise noted.)
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Input Voltage
Output Voltage
Line Regulation
Load Regulation
V
IN
V
OUT
⊿V
OUT-line
⊿V
OUT-load
1.7
V
OUT
-25mV
Conditions
-
V
OUT
6.0
V
OUT
+25mV
V
V
V
mV
mV
mV
mV
mV
mV
mA
µA
dB
dB
nV√Hz
°C
Ω
uA
V
V
I
OUT
=0mA
f
RR
=100Hz
f
RR
=1kHz
@10KHz
I
OUT
=10µA, VOUT＜2.5V
I
OUT
=10µA, VOUT≧2.5V
From (V
OUT
+0.3V) to 5.0V, I
OUT
=10mA
I
OUT
=5mA to 250mA
VOUT=1.05V (IOUT=250mA)
VOUT=1.20V (IOUT=250mA)
VOUT=2.85V (IOUT=250mA)
VOUT=3.50V (IOUT=250mA)
V
OUT
×0.99
-
-
-
-
21
520
440
160
150
-
10
82
80
40
-
50
0.9
-
-
V
OUT
×1.01
20
40
700
550
250
230
-
20
-
-
-
85
80
8.0
6.0
0.3
Voltage Dropout
⊿V
drop-out
-
-
-
Load Current
No Load Quiescent Current
Power Supply
Rejection Ratio
Output Noise Voltage
Operating Temperature range
Discharge Resistor
CE Pin Pull-down Current
CE Pin Control Voltage
ON
OFF
I
load
I
cq
RR1
RR2
Noise
Topr
RDSC
ISTB
V
CEH
V
CEL
500
-
-
-
-
-20
20
0.1
1.2
-0.3
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TSZ02201-0GBG0A600020-1-2
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BUXXTH5WNVX
Datasheet
Block Diagrams
V
IN
V
IN
V
REF
C
IN
GND
CE
OCP
V
OUT
V
OUT
Co
C
IN
½½½1.0µF
(Ceramic capacitor)
Co
½½½1.0µF
(Ceramic capacitor)
CE
Figure 2. Block Diagrams
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BUXXTH5WNVX
Reference data BU1ATH5WNVX
(Ta=25ºC unless otherwise specified.)
Datasheet
LINE REGULATION
1.08
1.07
1.06
1.05
-20℃
25℃
85℃
1.150
Load Regulation
-20℃
25℃
85℃
CE=VIN
Iout=10mA
1.100
VIN=2.5V
CE=VIN
VOUT[V]
1.04
1.03
1.02
VOUT [V]
1.050
1.000
1.01
1.00
0.99
1.7
2.0
2.3
2.6
2.9
3.2
3.5
0.950
0
50
100
150
200
250
300
VIN[V]
IOUT[mA]
Figure 3.
Figure 4.
OUTPUT VOLTAGE vs TEMPERATURE
1.15
VIN=2.5V
CE=VIN
IOUT=10uA
20
GROUND PIN CURRENT vs INPUT VOLTAGE
-20℃
25℃
85℃
CE=VIN
IOUT=0mA
1.10
VOUT[V]
15
IGND[uA]
1.05
10
1.00
5
0.95
-20
0
20
40
Temperature[℃]
60
80
0
1.7
2.0
2.3
2.6
VIN[V]
2.9
3.2
3.5
Figure 5.
Figure 6.
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TSZ02201-0GBG0A600020-1-2
14.Dec.2015.Rev.004
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