EL7640, EL7641, EL7642
®
Data Sheet
September 26, 2005
FN7415.1
TFT-LCD DC/DC with Integrated
Amplifiers
Features
• Current mode boost regulator
- Fast transient response
- 1% accurate output voltage
- 18V/3A integrated FET
- >90% efficiency
The EL7640, EL7641, and EL7642 integrate a high
performance boost regulator with 2 LDO controllers for V
ON
and V
, a V -slice circuit with adjustable delay and
OFF
either one (EL7640), three (EL7641), or five amplifiers
(EL7642) for V and V applications.
ON
COM GAMMA
• 2.6V to 5.5V V supply
IN
The boost converter in the EL7640, EL7641, and EL7642 is
a current mode PWM type integrating an 18V N-channel
MOSFET. Operating at 1.2MHz, this boost can operate in
either P-mode for superior transient response, or in PI-mode
for tighter output regulation.
• 2 LDO controllers for V
- 2% output regulation
and V
OFF
ON
- V -slice circuit
ON
• High speed amplifiers
- 150mA short-circuit output current
- 12V/µs slew rate
- 12MHz -3dB bandwidth
- Rail-to-rail inputs and outputs
Using external low-cost transistors, the LDO controllers
provide tight regulation for V , V
, as well as providing
ON OFF
start-up sequence control and fault protection.
The amplifiers are ideal for V and V
COM GAMMA
applications, with 150mA peak output current drive, 12MHz
bandwidth, and 12V/µs slew rate. All inputs and outputs are
rail-to-rail.
• Built-in power sequencing
• Internal soft-start
• Multiple overload protection
• Thermal shutdown
Available in the 32 Ld thin QFN (5mm x 5mm) Pb-free
packages, the EL7640, EL7641, and EL7642 are specified
for operation over the -40°C to +85°C temperature range.
• 32 Ld 5x5 thin QFN package
• Pb-Free plus anneal available (RoHS compliant)
Ordering Information
PART NUMBER
(Note)
PART
TAPE & PACKAGE
PKG.
Applications
• TFT-LCD panels
• LCD monitors
• Notebooks
MARKING REEL
(Pb-Free)
DWG. #
EL7640ILTZ
7640ILTZ
7640ILTZ
7640ILTZ
7641ILTZ
7641ILTZ
7641ILTZ
7642ILTZ
7642ILTZ
7642ILTZ
-
7”
13”
-
32 Ld 5x5
Thin QFN
MDP0051
MDP0051
MDP0051
MDP0051
MDP0051
MDP0051
MDP0051
MDP0051
MDP0051
EL7640ILTZ-T7
EL7640ILTZ-T13
EL7641ILTZ
32 Ld 5x5
Thin QFN
• LCD-TVs
32 Ld 5x5
Thin QFN
32 Ld 5x5
Thin QFN
EL7641ILTZ-T7
EL7641ILTZ-T13
EL7642ILTZ
7”
13”
-
32 Ld 5x5
Thin QFN
32 Ld 5x5
Thin QFN
32 Ld 5x5
Thin QFN
EL7642ILTZ-T7
EL7642ILTZ-T13
7”
13”
32 Ld 5x5
Thin QFN
32 Ld 5x5
Thin QFN
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements
of IPC/JEDEC J STD-020.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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