Document
XC6419 Series
Dual LDO Regulator (ch1=300mA, ch2=100mA) with ON/OFF Switch
www.DataSheet4U.com
ETR0338-003
GENERAL DESCRIPTION
The XC6419 series is a dual CMOS LDO regulator. The series features high accuracy, low output noise, high ripple rejection and low dropout and consists of a voltage reference, error amplifier, driver transistor, current limiter, thermal shutdown circuit and phase compensation circuit. Each output voltage is set independently by laser trimming and selectable in 0.05V increments within a range of 0.8 to 5.0V. The EN function turns each output of the two regulators off independently. In this state, the electric charge at the output capacitor (CL) is discharged via the internal auto-discharge switch, and as a result the VOUT voltage quickly returns to the VSS level. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. The high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance. VR1 and VR2 are completely isolated so that a cross talk during load fluctuations is minimized.
APPLICATIONS
● Mobile phones ● Cordless phones, Wireless communication equipment ● Portable games ● Digital still cameras, Digital video cameras ● Portable audio equipment ● PDAs
■FEATURES
Input Voltage Range Maximum Output Current Output Voltage Range Output Accuracy : : : : 1.5~6.0V ch1.300mA / ch2.100mA 0.8~5.0V ±1% (XC6419A/B) ±20mA@ VOUT≦2.0V ±2% (XC6419C/D) ±30mA@ VOUT≦1.5V ch1.115mV@IOUT=200mA ch2.115mV@IOUT=50mA ch1.28μA / ch2.23μA Less than 0.1μA 60dB@f=1kHz ch1.400mA / ch2.150mA
Dropout Voltage (VOUT=2.8V) Low Power Consumption Stand-by Current Ripple Rejection Current Limit Low ESR Capacitor CL High Speed Discharge Small Packages
: : : : :
:
USP-6C, SOT-26
TYPICAL APPLICATION CIRCUITS
6 1 2 3
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage vs. Output Current 400
350 DropoutVoltage [mV] Dropout Voltage: :Vdif Vdif (mV) 300 250 200 150 100 50 0 0 50 100 150 200 250 300
Output Current : (mA) OUT [mA] OutputCurrent : IOUT ch1 1CH ch2 2CH
ch2 Maximum Output Current 2CH
VOUT V=2.8V OUT=2.8V
85℃ 25℃ -40℃
5 4
100mA
ch1 Maximum Output Current 1CH
300mA
1/29
XC6419 Series
www.DataSheet4U.com
PIN CONFIGURATION
*The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. connected to the VSS (No. 4) pin. If the pad needs to be connected to other pins, it should be
PIN ASSIGNMENT
PIN NUMBER SOT-26 1 2 3 4 5 6 USP-6C 3 2 1 6 4 5 PIN NAME EN1 VIN EN2 VOUT2 VSS VOUT1 FUNCTIONS : ON/OFF Control 1 : Power Input : ON/OFF Control 2 : Output 2 : Ground : Output 1
PRODUCT CLASSIFICATION
Ordering Information
XC6419 DESIGNATOR ① DESCRIPTION VR1 SYMBOL A B C D A B C D 01~ M E R L DESCRIPTON : EN High Active without CL auto discharge (Accuracy:1%) : EN High Active with CL auto discharge (Accuracy:1%) : EN High Active without CL auto discharge (Accuracy:2%) : EN High Active with CL auto discharge (Accuracy:2%) : EN High Active without CL auto discharge (Accuracy:1%) : EN High Active with CL auto discharge (Accuracy:1%) : EN High Active without CL auto discharge (Accuracy:2%) : EN High Active with CL auto discharge (Accuracy:2%) : Sequential number showing VR1 and VR2 voltage combination VR1 range: 0.8 ~ 5.0V , VR2 range : 0.8 ~ 5.0V (0.05V increments) Refer to the table below : SOT-26 : USP-6C : Embossed tape, standard feed : Embossed tape, reverse feed
②
VR2
③④ ⑤ ⑥ DESIGNATOR ③④ VR1 01 02 03 04 05 06 07 08 09 10 1.80 1.20 1.80 1.50 2.85 1.80 3.00 2.80 1.20 1.10
Output Voltage Packages Device Orientation
VR2 2.80 2.90 1.80 2.70 2.85 3.30 3.00 1.80 1.20 1.30
③④ 11 12 13 14 15 16 17 18 19 20
VR1 1.30 2.80 2.50 3.00 1.20 2.80 3.30 3.10 2.80 1.30
VR2 1.50 2.80 3.30 3.30 1.80 3.30 3.30 3.10 1.50 2.80
③④ 21 22 23 24 25 26 27 28 29 30
VR1 1.50 1.80 1.85 1.85 2.60 1.50 2.00 3.30 3.30 2.10
VR2 2.80 3.00 2.80 3.30 2.80 1.50 3.00 1.80 1.75 4.10
2/29
*For other combinations, please ask Torex sales contacts.
XC6419
Series
www.DataSheet4U.com
BLOCK DIAGRAMS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER Input Voltage Output Current Output Voltage 1 / Output Voltage 2 EN1/EN2 Input Voltage Power Dissipation USP-6C
SYMBOL VIN IOUT1+IOUT2 VOUT1 /VOUT2 VEN1 /VEN2 Pd Topr Tstg
SOT-26 Operating Temperature Range Storage Temperature Range
RATINGS - 0.3 ~ + 6.5 500 (*1) VSS - 0.3 ~ VIN + 0.3 VSS - 0.3 ~ + 6.5 120 (*2) 1000 (PCB mounted) 250 - 40 ~ + 85 - 55 ~ + 125
UNITS V mA V V mW ℃ ℃
*1: Please use within the range of Pd > { (VIN-VOUT1)×IOUT1 + (VIN-VOUT2)×IOUT2 } *2: This power dissipation figure shown is PCB mounted and is for reference only. Please refer to page 28 for details.
3/29
XC6419 Series
www.DataSheet4U.com
ELECTRICAL CHARACTERISTICS
XC6419 Series
Ta=25℃ SYMBOL CONDITIONS VOUT(T)≧2.0V (A, B Series).