G2105A/B

G2105
Global Mixed-mode Technology
7-Channel DC-DC Converter for DSC
Features
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General Description
95% Efficient DC/DC Converter.
Highly Integrated 7-CH DC/DC with integrated
Power MOSFETs.
CH1, CH2, CH6 and CH7 Boost-type Synchronous Rectified Current-Mode PWM Converters
with true-shutdown function.
CH2 Buck(G2105B) or Boost(G2105A) for all Battery Application.
6 Channel Built-in Synchronous Rectified Current-Mode PWM Converters, 1 Channel Built-in
Non-Synchronous Rectified Current-Mode PWM
Converters.
Low Power Consumption (Sleep Mode) <10µA.
Built-In Short-circuit Protection (SCP) and Over
Current Protection (OCP) for MOSFETs.
Built-In Under Voltage Lock Out (UVLO) and Over
Load Protection (OLP).
Built-In Soft-Start Function.
Selectable CH7 Boost Type with Open LED Protection or Current Regulation Type LED Driver.
Built-In Power ON/OFF Sequence Control.
Fixed 2MHz(CH1~CH4) / 1MHz(CH5~CH7) Operating Frequency.
All Channel with internal compensation
All Power Switches integrated
Built-in RTC LDO.
Build-in thermal shutdown (TSD, 150°C ).
The G2105 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(G2105A), 1-cell
Li-Ion(G2105B), and multi-battery designs. On-chip
MOSFETs provide up to 92~95% efficiency for critical
power supplies. All channels DC/DC operate at Fixed
2MHz(CH1~CH4)/ 1MHz(CH5~CH7) Operating Frequency to optimize size, cost, and efficiency.
The G2105 is available in 32-pin TQFN (4X4) package.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G2105AK11U
2105A
-20°C to +85°C
TQFN4X4-32
G2105BK11U
2105B
-20°C to +85°C
TQFN4X4-32
Note: K1: TQFN4X4-32
1: Bonding Code
U: Tape & Reel
Applications
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DSC Power Supply
PVCC1
LX1
26
G2105
25
CTL1
LX3
28
27
FB7
VOUT7
PVCC3
29
30
LX7
32
31
LX1
CTL1
PVCC1
25
26
27
PVCC3
LX3
28
29
VOUT7
FB7
30
32
31
LX7
Pin Configuration
CH1
Synchronous Rectified
Current Mode Step-Up
CTL7
1
24
FB1
CTL7
1
24
FB1
CTL5
2
23
FB3
CTL5
2
23
FB3
22
V08
22
V08
21
VCC
21
MODE
FB5
3
PVCC5
4
Thermal
Pad
FB5
3
PVCC5
4
Thermal
Pad
15
16
LX2
13
14
LX4
CTL234
PVCC2
12
LX6
LX6
G2105A TQFN4X4-32
PVCC4
RTCLDO_O
11
17
FB4
8
9
CTL6
10
VOUT2
VOUT6
17
16
8
PVCC2
RTCLDO_P
CTL6
15
18
14
FB6
7
LX2
POK
CTL234
FB6
18
13
FB2
7
12
BAT
19
LX4
20
6
PVCC4
5
VOUT5
11
LX5
FB2
FB4
BAT
19
9
20
6
10
5
VOUT6
LX5
VOUT5
G2105B TQFN4X4-32
CH2
Synchronous Rectified
Current Mode Step-Up(G2105A)/
Step-Down(G2105B)
CH3
Synchronous Rectified
Current Mode Step-Down
CH4
Synchronous Rectified
Current Mode Step-Down
CH5 (CCD INV)
Current Mode Inverting
CH6 (CCD BST)
Synchronous Rectified
Current Mode Step-Up
CH7 (LED Driver)
Synchronous Rectified
Current Mode Step-Up or Current
Regulator Type LED Driver
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2
Jan 17, 2013
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