1
Data Sheet
ud200546
June 22, 2005 V4
■GENERAL DESCRIPTION
The XC6215 series are highly precise, low noise, positive
voltage LDO regulators manufactured using CMOS processes.
The series achieves very low supply current, 0.8µA (TYP.) and
consists of a reference voltage source, an error amplifier, a
current foldback circuit, and a phase compensation circuit plus
a driver transistor.
USP-4/SSOT-24/USP-3 packages make high density mounting
possible. Therefore, the series is ideal for applications where
high density mounting is required such as in mobile phones.
Output voltage is selectable in 100mV increments within a
range of 0.9V ~ 5.0V by laser trimming
The series is also compatible with low ESR ceramic capacitors,
which give added output stability.
The current limiter's foldback circuit also operates as a short
protect for the output current limiter and the output pin.
Furthermore, the CE function allows the output of the regulato
to be turned off, resulting in greatly reduced powe
consumption.
■TYPICAL APPLICATION CIRCUIT
■APPLICATIONS
●Mobile phones
●Cordless phones, wireless communication equipment
●Portable games
●Cameras, Video recorders
●Portable AV equipment
●PDAs
■FEATURES
Maximum Output Current : 200mA (300mA Limit, TYP.)
@ VOUT=3.0V, VIN=4.0V
Dropout Voltage : 320mV @ IOUT = 100mA
@ VOUT = 3.0V
Operating Input Voltage Range : 1.5V ~ 6.0V
Output Voltage Range : 0.9V ~ 5.0V (100mV Step)
Highly Accurate : Set voltage accuracy ±2%
(1.5V<V
OUT(T)<5.0V)
Set voltage accuracy ±30mV
(0.9V<
VOUT(T)<1.5V)
Low Power Consumption : 0.8µA (TYP.)
Stand-by Current : Less than 0.1µA
Operating Temperature Range : - 40℃~ 85℃
Low ESR Capacitor Compatible : Ceramic capacitor
Ultra Small Packages : USP-4
SSOT-24
USP-3 (For the XC6215P series only)
◆Low Power Consumption : 0.8µA (TYP.)
◆Input Voltage Range : 1.5V ~ 6.0V
◆Output Voltage Range : 0.9V ~ 5.0V
◆Maximum Output Current : 200mA (300mA Limit, TYP.)
@ V
OUT=3.0V, VIN=4.0V
◆Current Limiter Circuit Built-In
◆Ceramic Capacitor Compatible
◆Ultra Small Package : USP-4
SSOT-24
USP-3
VIN VOUT
VSS
CE
VOUT
CL=0.1uF
(ceramic)
CIN=1.0uF
(ceramic)
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Supply Current vs. Input Voltage
●USP-4 and SSOT-24 packages
(For the USP-3 package, with no CE pin)
XC6215x302
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0123456
Input Voltage VIN (V)
Supply Current I
SS
(µA)
VIN=VCE
CIN=1.0µF(ceramic),CL=0.1µF(ceramic)
Ta=-40℃
Ta=25℃
Ta=85℃