G2204B Datasheet: 7-Channel DC-DC Converter





G2204B 7-Channel DC-DC Converter Datasheet

Part Number G2204B
Description 7-Channel DC-DC Converter
Manufacture Global Mixed-mode Technology
Total Page 1 Pages
PDF Download Download G2204B Datasheet PDF

Features: G2204/G2204B Global Mixed-mode Technolo gy Inc. G2204C/G2204D 7-Channel DC-DC Converter for DSC Features „ 1.5V ~ 5.5V Input Voltage Operation. „ 95% Ef ficient DC/DC Converter. „ Highly Inte grated 7-CH DC/DC with integrated Power MOSFETs. „ Main Channel Selectable Bu ck or Boost for 2*AA or Li-Ion Applicat ion. „ Built-in 6 Channel Synchronous Rectified Current-Mode PWM/PSM Converte r, 1 Channel Non-Synchronous Rectified Current-Mode PWM Converter. „ Selectab le Boost Type with LED open protection or Current Regulation Type LED Driver. „ 32-steps brightness control for LED Driver „ Built-in HV LDO and RTC LDO Low Power Consumption ( Sleep Mode ) < 10uA. „ Built-In Power ON/OFF Sequen ce for 4 Channel Synchronous Rectified Converter. „ Built-In Power ON Sequenc e for CCD+,CCDpower. „ Built-In Short Circuit Protection (SCP) & Under Voltag e Protection (UVP) . „ Cycle-by-Cycle current limit for DC/DC Converter „ Bu ilt-In Thermal Shutdown Function. „ Built-In Battery OVP Funct.

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G2204/G2204B
Global Mixed-mode Technology Inc.
G2204C/G2204D
7-Channel DC-DC Converter 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.
„ Selectable Boost Type with LED open
protection or Current Regulation Type LED
Driver.
„ 32-steps brightness control for LED Driver
„ Built-in HV LDO and RTC LDO
„ Low Power Consumption ( Sleep Mode ) <
10uA.
„ Built-In Power ON/OFF Sequence for 4 Channel
Synchronous Rectified Converter.
„ Built-In Power ON Sequence for CCD+,CCD-
power.
„ 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.
„ TQFN4x4-32 Package.
General Description
The G2204 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.
Applications
DSC Power Supply
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
G2204K11U
2204
-20°C to +85°C
G2204BK11U
2204B -20°C to +85°C
G2204CK11U
2204C -20°C to +85°C
G2204DK11U
2204D -20°C to +85°C
G2204: CH1-CH2-CH4-CH3-SDOK,
G2204B:CH1-CH4-CH3-CH2-SDOK,
G2204C:CH1-CH4-CH2-SDOK-CH3,
G2204D:CH1-CH4-CH2-CH3-SDOK
Note: K1: TQFN4X4-32
1: Bonding Code
U: Tape & Reel
PACKAGE
(Green)
TQFN4X4-32
TQFN4X4-32
TQFN4X4-32
TQFN4X4-32
Pin Configurations
G2204/G2204B/G2204C/G2204D
FBZ
ONLED
ISET
VOLED
LXLED
LXBST
VOBST
FBBST
1
2
3
4
5
6
7
8
Thermal
Pad
24 FBSD
23 ONSU
22 VBG
21 VSU
20 RTCOUT
19 FBINV
18 VOINV
17 BATT
TQFN4X4-32
Note: Recommend connecting the Thermal Pad to
the Ground for excellent power dissipation.
G2204/G2204B
G2204C/G2204D
SU
Synchronous Rectified
Current Mode Step-Up
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
Boost or current Regulator
HV LDO/RTC LDO
Ver: 0.1
May 26, 2011
TEL: 886-3-5788833
http://www.gmt.com.tw
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