voltage regulators XC62170 pages

XC6217 Series

ETR03022_014

200mA High Speed "Green Operation" LDO Voltage Regulators
☆GreenOperation Compatible

■GENERAL DESCRIPTION

The XC6217 series are precise, low noise, high speed, low dropout regulators with green operation (GO) function. They are
fabricated using Torex’s CMOS process. Performance features of the series include high ripple rejection and low dropout
voltage, and the series include a reference voltage source, an error amplifier, a current limiter, and a phase compensation
circuit.
GO provides high speed operation, low power consumption and high efficiencies by automatically switching between a high
speed mode (HS) and a power save mode (PS) depending upon the load current level. The switching point of the GO to the
output current is being fixed inside the IC. When only high-speed operation is required, it can be fixed by inputting a high level
signal to the GO pin, thus providing operating conditions with the most suitable level of supply current for the application.
The CE function enables the output to be turned off resulting in greatly reduced power consumption. In this state, with the
XC6217 series B/D Type, the IC turns on the internal switch located between the VOUT and VSS pins. This short enables the
electric charge at the output capacitor (CL) to be discharged via the internal auto-discharge resistance, and as a result the VOUT
pin quickly returns to the VSS level. The series' output stabilization capacitor (CL) is also compatible with low ESR ceramic
capacitors.
Output voltage is selectable in 0.05V increments within a range of 0.80V~4.00V, using laser trimming technologies.
The current limiter's foldback circuit also operates as a short circuit protection for the output current limiter and the output pin.

■FEATURES

■APPLICATIONS

: 200mA
: 80mV@ IOUT=100mA, VOUT=3.0V
: 1.6V ~ 6.0V (0.8V≦VOUT≦1.55V
1.8V ~ 6.0V (1.6V≦VOUT≦4.0V
Output Voltage Range
: 0.80V~4.00V (0.05V increments)
Accuracy
: +2% (HS: VOUT >2.00V) (Standard)
+30mV (HS: VOUT≦1.95V) (Standard)
+2.5%, -3.5% (PS: VOUT >2.60V) (Standard)
+3.5%, -4.5% (PS:1.60≦VOUT≦2.55V) (Standard)
+70mV, -90mV (PS:0.80≦VOUT≦1.55V) (Standard)
+1% (HS: VOUT >2.00V) (High Accuracy)
+20mV (HS: VOUT≦1.95V) (High Accuracy)
+1.5%, -2.5% (PS: VOUT >2.60V) (High Accuracy)
+2.5%, -3.5% (PS:1.60≦VOUT≦2.55V) (High Accuracy)
+50mV, -70mV (PS:0.80≦VOUT≦1.55V) (High Accuracy)
Low Power Consumption
: TYP.4.5μA when PS mode
TYP.25μA when HS mode
Standby Current
: Less than 0.1μA
High Ripple Rejection
: 70dB @ 1kHz (When HS mode)
Low ESR Capacitor
: 1.0μF Ceramic capacitor
Regulators with Green Operation (GO) Function
CL High-Speed-Discharge (XC6217B/D)
Operating Ambient Temperature :-40℃~+85℃
Packages
: USP-4D, SOT-25(XC6217 Series A/B Type)
SSOT-24,USPN-4(XC6217 Series C/D Type)
Environmentally Friendly
: EU RoHS Compliant, Pb Free
Output Current
Dropout Voltage
Operating Voltage Range

●Cellular phones
●Cordless phones
●Wireless communication equipment
●Portable games
●Cameras, VCRs
●Portable AV equipment
●PDAs

■TYPICAL APPLICATION CIRCUIT

■ TYPICAL PERFORMANCE
CHARACTERISTICS
XC6217B281MR
VIN=3.8V,Tr=Tf=5usec, Ta=25℃
C IN=C L=1.0uF(Ceramic)

2.9
2.85

2.95
VOUT_HSmode

GO

CIN
1.0μF
(ceramic)

VSS

CL
1.0μF
(ceramic)

VOUT_HSmode(V)

2.8

CE

3

2.9

2.75

2.85
VOUT_GOmode

2.7

2.8

2.65

2.75

2.6

2.7

2.55

2.65
Output Current IOUT=50mA

2.5
2.45

2.6
I OUT=0.1mA

IOUT=0.1mA

2.4

VOUT_GOmode(V)

VOUT

VIN

2.55
2.5

Time (500usec/div)

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