LP6253 Datasheet, PDF (1/11 Pages) Lowpower Semiconductor inc – Output to Input Disconnect at Shutdown Mode

Preliminary Datasheet LP6253
High Efficiency 7A Synchronous Boost Convertor
General Description
The LP6253 is a synchronous current mode boost
DC-DC converter. Its PWM circuitry with built-in
7A(ESOP8) current power MOSFET makes this
converter highly efficient. Selectable high switching
frequency allows faster loop response and easy
filtering with a low noise output. The non-inverting
input its error amplifier is connected to an internal
0.5V(TQFN-16)/0.8V(ESOP8) precision reference
voltage. Current mode control and internal
compensation network make it easy and flexible to
stabilize the system.
Ordering Information
LP6253 □ □ □
Features
 Up to 96% efficiency
 Output to Input Disconnect at Shutdown Mode
 Shut-down current:<1uA
 Output voltage Up to 5.0V/3A(ESOP8)
 Internal Compensation
 1.4MHz(TQFN-16) & 800KHz(ESOP8)fixed
frequency switching
 High switch on current:7A for LP6253SPF
6A for LP6253QVF
 Available in ESOP8 and TQFN-16 Package
Applications
 Battery products
 Host Products
 Panel
Pin Configurations
F: Pb-Free
Package Type
SP: ESOP8
QV: TQFN-16
Typical Application Circuit
ILIM 1
EN 2
LX 3
PG 4
9
PGND
ESOP8
8 GND
7 FB
6 _VOUT
5 VIN
LP6253QVF
LBO EN MODE LBI
16
15
14
13
FB 1
12 VIN
VOUT ²
VOUT 3
VOUT ⁴
GND
TQFN-16
11 GND
10 GND
9 GND
5
6
7
8
LX LX LX LX
Marking Information
Device
Marking Package Shipping
LP6253SPF LPS
ESOP8
3K/REEL
LP6253QVF LP6253
TQFN-16
YWX
Y: Year code. W: Week code. X: Batch numbers.
LP6253 –00 Version 1.0 Sep.-2013 Email: [e-mail]
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