XC6225
Series
30mA High Speed LDO Regulator
ETR0342-005
■GENERAL
DESCRIPTION
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.
■APPLICATIONS
●
Smart phones / Mobile phones
●
Portable games
●
Digital still cameras / Camcorders
●
Digital audio equipment
●
Mobile devices / terminals
■FEATURES
Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage Range
Accuracy
Low Power Consumption
Stand-by Current
: 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
High Ripple Rejection
: 70dB @ 1kHz
Operating Ambient
: -40℃~+85℃
Temperature
Output Capacitor
: 1.0μF ceramic capacitor
C
L
High-Speed Auto-Discharge (XC6225B)
Low Output Noise
Packages
: USP-4, SOT-25
SSOT-24
: EU RoHS Compliant, Pb Free
Environmentally Friendly
■TYPICAL
APPLICATION CIRCUIT
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XC6225
Series
■PIN
CONFIGURATION
*The heat sink pad of the USP-4 is reference 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
■PIN
FUNCTION ASSIGNMENT
PIN NAME
CE
SIGNAL
L
H
OPEN
STATUS
Operation OFF
Operation ON
Undefined state
*CE pin should not be left open. Each should have a certain voltage.
2/15
XC6225
Series
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6225①②③④⑤⑥-⑦
(*1)
DESIGNATOR
①
② ③
ITEM
Type of Regulator
Output Voltage
SYMBOL
A
B
08½50
2
④
Output Voltage
Accuracy
A
Packages
(Order Unit)
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
(3,000/Reel)
SOT-25
(3,000/Reel)
SSOT-24
(3,000/Reel)
(*1)
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
3/15
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