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XCM520AG01DR-G Datasheet(PDF) 1 Page - Torex Semiconductor

Part # XCM520AG01DR-G
Description  600mA Synchronous Step-Down DC/DC Converter Dual LDO Regulator
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XCM520AG01DR-G Datasheet(HTML) 1 Page - Torex Semiconductor

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XCM520 Series
600mA Synchronous Step-Down DC/DC Converter + Dual LDO Regulator
■GENERAL DESCRIPTION
The XCM520 series is a multi chip module which comprises of a 600mA driver transistor built-in synchronous step–down
DC/DC converter and a dual CMOS LDO regulator. The device is housed in small USP-12B01 package which is ideally
suited for space conscious applications.
The XCM520 can replace this dual DC/DC to eliminate one inductor and reduce output noise.
The DC/DC converter with a built-in 0.42ΩP-channel MOS and a 0.52ΩN-channel MOS provides a high efficiency, stable
power supply up to 600mA to using only a coil and two ceramic capacitors connected externally.
The highly accurate, low noise, dual CMOS LDO regulator includes a reference voltage source, error amplifiers, driver
transistors, current limiters and phase compensation circuits internally. The series is also fully compatible with low ESR
ceramic capacitors.
This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response
performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each
regulator to be turned off independently, resulting in greatly reduced power consumption.
■APPLICATIONS
●Mobile phones, Smart phones
●Bluetooth headsets
●WLAN PC cards
●Portable HDDs, SSDs
●PDAs, PNDs, UMPCs
●MP3 players, Media players
●Portable game consoles
●Cordless phones, Radio communication equipment
■FEATURES
<DC/DC Convertor Block>
Driver Transistor
: 0.42Ω P-channel MOS Built-in
Switching Transistor
: 0.52Ω N-channel MOS Built-in
Input Voltage Range
: 2.7V ∼ 6.0V
Output Voltage Range
: 0.8V ∼ 4.0V
High Efficiency
: 92% (TYP.) *
Output Current
: 600mA
Oscillation Frequency
: 1.2MHz,3.0MHz (±15%)
Soft-Start
: Built-In Soft-Start
Current Limiter Circuit : Constant Current & Latching
Control
: Fixed PWM, Auto PWM/PFM
*Performance depends on external components and wiring on PCB wiring.
<Dual LDO Regulator Block>
Maximum Output Current
: 150mA (Limiter 300mA TYP.)
Dropout Voltage
: 100mV @ 100mA
Operating Voltage Range
: 1.5V~6.0V
Output Voltage Range
: 0.8V~5.0V (0.05V increments)
High Accuracy
: ±2% (VOUT>1.5V)
±30mV (VOUT≦1.5V)
Low Power Consumption
: 25μA (TYP.)
Stand-by Current
: Less than 0.1μA(TYP.)
High Ripple Rejection
: 70dB @1kHz
Low Output Noise
Operating Temperature Range
: -40℃~+85℃
Low ESR Capacitor
: Ceramic Capacitor Compatible
Package
: USP-12B01
Standard Voltage Combinations
: VOUT1
VOUT2
VOUT3
XCM520xx01D
1.8V
1.2V
2.3V
XCM520xx02D
1.8V
1.3V
2.3V
XCM520xx03D
1.8V
1.2V
2.2V
XCM520xx04D
1.8V
1.2V
2.8V
XCM520xx05D
1.0V
1.2V
1.8V
XCM520xx06D
0.8V
1.5V
1.8V
*Other combinations are available as semi-custom products.
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
* The dashed lines denote the connection using through-holes
at the backside of the PC board.
* The above circuit uses XCM520AA01 series.
* The DC/DC block VOUT3 is connected to the dual LDO regulator
VIN1 in this connection.
* Also, it is possible to operate two VIN independently.
ETR2427-002a
7
8
9
10
3
4
5
6
EN2
11
12
2
1
EN1
PGND
AGND
EN3
C
L2
1μF
C
L1
1μF
C
IN1
1μF
C
L3
10μF
L
1.5μH
C
IN2
4.7μF
V
IN
3.3V
V
OUT1
1.8V
V
OUT2
1.2V
V
OUT1
V
SS
V
OUT3
L
x
V
IN2
V
IN1
V
OUT2
V
OUT3
2.3V


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