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PDF MB39C007 Data sheet ( Hoja de datos )
| Número de pieza | MB39C007 | |
| Descripción | 2 ch DC/DC Converter IC Built-in Switching FET & voltage detection function | |
| Fabricantes | Fujitsu Component | |
| Logotipo |  |
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FUJITSU MICROELECTRONICS
DATA SHEET
DS04-27246-2E
ASSP for Power Management Applications
2 ch DC/DC Converter IC Built-in Switching FET &
voltage detection function, PFM/PWM Synchronous
Rectification, and Down Conversion Support
MB39C007
■ DESCRIPTION
The MB39C007 is a current mode type 2-channel DC/DC converter IC built-in voltage detection, synchronous
rectifier, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier,
PFM/PWM control circuit, reference voltage source, and voltage detection circuit.
External inductor and decoupling capacitor are needed only for the external component.
MB39C007 is small, achieve a highly effective DC/DC converter in the full load range, this is suitable as the built-
in power supply for handheld equipment such as mobile phone/PDA, DVDs, and HDDs.
■ FEATURES
• High efficiency
: 96% (Max)
• Low current consumption
: 30 μA (At PFM/ch)
• Output current
: 800 mA/ch (Max)
• Input voltage range
: 2.5 V to 5.5 V
• Operating frequency
: 2.0 MHz (Typ)
• Built-in PWM operation fixed function
• No flyback diode needed
• Low dropout operation
: For 100% on duty
• Built-in high-precision reference voltage generator : 1.30 V ± 2%
• Consumption current in shutdown mode
: 1 μA or less
• Built-in switching FET
: P-ch MOS 0.3 Ω (Typ) , N-ch MOS 0.2 Ω (Typ)
• High speed for input and load transient response in the current mode
• Over temperature protection
• Packaged in a compact package
: QFN-24
■ APPLICATIONS
• Flash ROMs
• MP3 players
• Electronic dictionary devices
• Surveillance cameras
• Portable GPS navigators
• DVD drives
• IP phones
• Network hubs
• Mobile phones
etc.
Copyright©2008-2009 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2009.9
www.DataSheet.in
1 page  
MB39C007
■ BLOCK DIAGRAM
VIN
CTL1
3
OUT1
10
ON/OFF
×3
AVDD
5
DVDD1
DVDD2
11, 12 19, 20
− Error Amp
+
DVDD1
DAC
VREFIN1
8
MODE1
9
VIN
CTLP
VDET
1
7
VREF
6
CTL2
2
OUT2
21
IOUT
Comp.
L:PFM/PWM
OPEN:PWM
Mode
Control
PFM/PWM
Logic
Control
LX1
13
VIN
1.30 V
ON/OFF
VREF
×3
ON/OFF
−
+
24
XPOR
− Error Amp
+
DVDD2
VOUT1
VREFIN2
23
MODE2
22
IOUT
Comp.
L:PFM/PWM
OPEN:PWM
Mode
Control
PFM/PWM
Logic
Control
4
AGND
LX2
18
14, 15 16, 17
DGND1
DGND2
VOUT2
DS04-27246-2E
www.DataSheet.in
5
5 Page 
MB39C007
■ ELECTRICAL CHARACTERISTICS
(Ta = +25 °C, AVDD = DVDD1 = DVDD2 = 3.7 V, VOUT1/VOUT2 setting value = 2.5 V, MODE1/MODE2 = 0 V)
Parameter
Sym-
bol
Pin No.
Condition
Value
Unit
Min Typ Max
Input current
IREFIN 8, 23 VREFIN = 0.15 V to 1.3 V
− 100 0
+ 100 nA
Output voltage VOUT
VREFIN = 0.833 V,
OUT = −100 mA
2.45 2.50 2.55 V
Input stability
LINE
2.5 V ≤ AVDD = DVDD1 =
10, 21 DVDD2 ≤ 5.5 V*1
⎯
⎯
10 mV
Load stability LOAD
−100 mA ≥ OUT ≥ −800 mA ⎯ ⎯ 10 mV
OUT pin input
impedance
ROUT
OUT = 2.0 V
0.6 1.0 1.5 MΩ
LX Peak current IPK
Output shorted to GND
0.9 1.2 1.7 A
DC/DC
converter
block
PFM/PWM
switch current
Oscillation
frequency
IMSW 13, 18
fosc
⎯
⎯
⎯ 30 ⎯ mA
1.6 2.0 2.4 MHz
Rise delay time
tPG
2, 3, C1/C2 = 4.7 μF, OUT = 0 A,
10, 21 OUT1/OUT2 : 0 → 90% VOUT
⎯
45
80 μs
SW NMOS-FET
OFF voltage
VNOFF
⎯ ⎯ − 10* ⎯ mV
SW PMOS-FET
ON resistance
SW NMOS-FET
ON resistance
RONP
RONN
LX1/LX2 = −100 mA
13, 18
LX1/LX2 = −100 mA
⎯ 0.30 0.48 Ω
⎯ 0.20 0.42 Ω
LX leak current
ILEAKM
ILEAKH
0 ≤ LX ≤ VDD*2
− 1.0 ⎯
+ 8.0 μA
VDD = 5.5 V, 0 ≤ LX ≤ VDD*2 − 2.0 ⎯ + 16.0 μA
Overheating
TOTPH
+ 120* + 135* + 160* °C
protection
⎯⎯
Protection (Junction Temp.) TOTPL
+ 95* + 110* + 125* °C
circuit
block
UVLO threshold VTHHUV
voltage
VTHLUV
5, 11,
12, 19,
⎯
2.17 2.30 2.43 V
2.03 2.15 2.27 V
UVLO
hysteresis width
VHYSUV
20
⎯ 0.08 0.15 0.25 V
Voltage
detection
XPOR threshold
voltage
XPOR
hysteresis width
VTHHPR
VTHLPR
VHYSPR
7
⎯
⎯
circuit
block
XPOR output
voltage
XPOR output
current
VOL XPOR = 25 μA
24
IOH XPOR = 5.5 V
575 600 625 mV
558 583 608 mV
⎯ 17 ⎯ mV
⎯ ⎯ 0.1 V
⎯ ⎯ 1.0 μA
* : This value is not be specified. This should be used as a reference to support designing the circuits.
(Continued)
DS04-27246-2E
11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MB39C007.PDF ] | |
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