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G2205 Schematic ( PDF Datasheet ) - Global Mixed-mode Technology

Teilenummer G2205
Beschreibung 7+6 Channels PMIC
Hersteller Global Mixed-mode Technology
Logo Global Mixed-mode Technology Logo 




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G2205 Datasheet, Funktion
Global Mixed-mode Technology
G2205
7+6 Channels PMIC for DSC
Features
„ 1.5V ~ 5.5V Input Voltage Operation.
„ 95% Efficient DC/DC Converter
„ Highly Integrated 7-CH DC/DC with integrated
Power MOSFETs
„ Main Channel Selectable Buck or Boost for
2*AA or Li-Ion Application
„ Built-in 6 Channel Synchronous Rectified
Current-Mode PWM/PSM Converter, 1 Channel
Non-Synchronous Rectified Current-Mode PWM
Converter.
„ Boost Type with LED open protection LED Driver
„ 32-steps brightness control by I2C for LED
Driver
„ Built-in HV LDO and RTC LDO
„ Built-in 4 LDO regulators
„ Low Power Consumption ( Sleep Mode ) < 10µA.
„ Built-In Selectable Power ON/OFF Sequence for
4 Channel Synchronous Rectified Converter.
„ Built-In Power ON/OFF Sequence by I2C for
CCD+,CCD- power, and HVLDO.
„ Built-In Short Circuit Protection (SCP) & Under
Voltage Protection (UVP)
„ Cycle-by-Cycle current limit for DC/DC Converter
„ Built-In Thermal Shutdown Function.
„ Built-In Battery OVP Function.
„ Built-In Soft-Start Function.
„ Built-In True Shutdown in Boost Converter.
„ Fixed 1.5MHz/750KHz Operating Frequency.
„ TQFN40 Package (5mmx5mm).
Applications
DSC and DV Power Supply
General Description
The G2205 provide a complete power supply solution
for digital cameras. They improve performance,
component count, and size compared to other
multi-channel controllers in 2-cell AA, 1-cell Li-Ion, and
multi-battery designs. On-chip MOSFETs provide up to
92~95% efficiency for critical power supplies. All
channels DC/DC operate at one fixed frequency of
1.5MHz/750KHz to optimize size, cost, and efficiency.
All Synchronous converters operate at pulse skipping
mode at light load. They also feature True-Shutdown
as well as internal compensation to minimize external
component count..
Ordering Information
ORDER
NUMBER
G2205RG1U
Note: RG:TQFN5x5-40
1: Bonding code
U: Tape & Reel
MARKING
2205
TEMP.
RANGE
-35°C~+85°C
PACKAGE
(Green)
TQFN5X5-40
Pin Configuration
G2205
SU
Synchronous Rectified
Current Mode Step-Up
FBZ
ISET
VOLED
LXLED
LXBST
PVBST
VIN8
VOUT8
VIN11
VOUT11
1
2
3
4
5
6
7
8
9
10
Thermal
Pad
30 FBSD
29 VBG
28 RESET_OUT
27 DET_IN
26 VSU
25 SEQ_1
24 SEQ_2
23 RTCOUT
22 VOINV
21 BATT
MAIN
Current Mode
Selectable Step-Up/Step-Down
SD
Synchronous Rectified
Current Mode Step-Down
DDRZ
Synchronous Rectified
Current Mode Step-Down
CCD INV
Current Mode Inverting
CCD BST
Synchronous Rectified
Current Mode Step-Up
LED Driver
Synchronous Rectified
Current Mode Step-Up
G2205 TQFN5X5-40
Note: Recommend connecting the Thermal Pad to
the Ground for excellent power dissipation.
HV LDO/RTC LDO
4 x LVLDO
Ver: 0.2
Jul 27 2012
TEL: 886-3-5788833
http://www.gmt.com.tw
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