XC6225
Series
30mA High Speed LDO Regulator
ETR0342-002
The XC6225 series is a high accuracy, low noise, and low dropout CMOS LDO regulator. The series includes a
reference voltage source, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit.
The CE function enables the entire circuit to be turned off by a low level input signal to the CE pin. In this stand-by
state, the XC6225B series can discharge the electric charge stored at the output capacitor through the internal
auto-discharge switch, and as a result the V
OUT
pin quickly returns to the V
SS
level. The output stabilization capacitor
(C
L
) is also compatible with low ESR ceramic capacitors. Output voltage is selectable in 0.05V increments within a
range of 0.8V~5.0V. The current limit fold-back circuit works as a short circuit protection as well as the output current
limiter. The series achieves a fast response with only 25μA of low power consumption. The current limit is set to
50mA (TYP.) so that the device is optimized to protect the circuit from over-current. It is ideally suited for applications
requiring 30 mA or less.
A small USP-4 package makes high density mounting possible.
■GENERAL
DESCRIPTION
■APPLICATIONS
●
Cellular phones
●
Cordless phones,
Wireless communication equipment
●
Portable games
●
Cameras, VCRs
●
Portable AV equipment
●
PDAs
■FEATURES
Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
Accuracy
: 30mA <50mA (TYP.) Limit>
: 70mV@ I
OUT
=30mA, V
OUT
=3.2V
: 2.5V ~ 6.0V
: 0.8V~5.0V (0.05V increments)
: +2% (V
OUT
>1.5V)
+0.03V (V
OUT
≦1.45V)
: 25μA (TYP.)
: Less than 0.1μA
: 70dB @ 1kHz
: -40℃~+85℃
Low Power Consumption
Stand-by Current
High Ripple Rejection
Operating Temperature
Range
Output Capacitor
: 1.0μF ceramic capacitor
CL High-Speed Auto-Discharge (XC6225B)
Low Output Noise
Packages
: USP-4, SOT-25
SSOT-24 (under development)
■TYPICAL
APPLICATION CIRCUIT
1/15
XC6225
Series
■PIN
CONFIGURATION
(under development)
*The heat sink pad of the USP-4 is recommended
to be soldered to enhance the strength. Please
refer to the reference mount pattern and metal
mask pattern. This pad should be electrically
opened or connected to the V
SS
(No.2) pin.
■PIN
ASSIGNMENT
PIN NUMBER
USP-4
4
1
2
3
-
SOT-25
1
5
2
3
4
SSOT-24
4
3
2
1
-
PIN NAME
V
IN
V
OUT
V
SS
CE
NC
FUNCTIONS
Power Input
Output
Ground
ON/OFF Control
No Connection
*SSOT-24 is under development.
2/15
XC6225
Series
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6225①②③④⑤⑥-⑦
(*1)
DESIGNATOR
①
② ③
DESCRIPTION
Type of Regulator
Output Voltage
SYMBOL
A
B
08½50
2
④
Output Voltage
Accuracy
A
Packages
Taping Type
(*2)
GR-G
MR-G
NR-G
DESCRIPTION
CE High Active, Without C
L
discharge function
CE High Active, With C
L
discharge function
e.g. 3.0V
→
①=3, ②=0
nd
Output voltage is { x.x0V } (the 2 decimal place is “0”)
2% (V
OUT(T)
≧1.5V),
Within ±0.03V (V
OUT(T)
≦1.40V)
nd
Output voltage is { x.x5V } (the 2 decimal place is “5”)
±2% (V
OUT
≧1.55V),
Within ±0.03V (V
OUT
≦1.45V)
⑤⑥-⑦
USP-4 (Halogen & Antimony free)
SOT-25 (Halogen & Antimony free)
SSOT-24 (Halogen & Antimony free) under development
(*1)
(*2)
The ”-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
The device orientation is fixed in its embossed tape pocket.
For reverse orientation, please contact your local Torex sales office or representative.
(Standard orientation:
⑤R-⑦,
Reverse orientation:
⑤L-⑦)
3/15
XC6225
Series
■BLOCK
DIAGRAMS
●XC6225A
Series
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
●XC6225B
Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-4
Power Dissipation
SOT-25
SSOT-24
Operating Temperature Range
Storage Temperature Range
(*1)
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
Pd
Topr
Tstg
RATINGS
V
SS
-0.3½+6.5
400
(*1)
V
SS
-0.3½V
IN
+0.3
V
SS
-0.3½+6.5
120
250
150
-40½+85
-55½+125
Ta=25℃
UNITS
V
mA
V
V
mW
℃
℃
I
OUT
≦
Pd / (V
IN
-V
OUT
)
*SSOT-24 is under development.
4/15
DSP and ARM Processors
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