Document
FPF1205 / FPF1206 — IntelliMAX™ Advanced Load Switch
December 2010
FPF1205 / FPF1206 IntelliMAX™ Advanced Load Switch
Features
1.2V to 4.0V Input Voltage Operating Range Typical RON: 75mΩ at VIN=3.3V 110mΩ at VIN=1.8V 240mΩ at VIN=1.2V Slew Rate Control with tR: 110µs Output Discharge Function on FPF1206 Low <1.5µA Quiescent Current Extra Low <100nA Off Supply Current ESD Protected: Above 7000V HBM, 2000V CDM GPIO/CMOS-Compatible Enable Circuitry 4-Bump WLCSP, 0.76mm x 0.76mm, 0.4mm Pitch
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Description
The FPF1205/06 is an ultra-small IntelliMAX load switch with integrated P-channel switch and analog control features. Internal slew-rate control prevents inrush current and the resulting excessive voltage drop on power rail. The input voltage range operates from 1.2V to 4.0V to provide power-disconnect capability for post-regulated power rails in portable and consumer products. The low shut-off current of 1µA (maximum) allows power designs to meet standby and off-power drain specifications. The FPF1205/06 is controlled by an active-HIGH logic input (ON pin) compatible with standard CMOS GPIO circuitry found on Field Programmable Gate Array (FPGA) and embedded processors. The FPF1205/06 is available in a 0.76mm x 0.76mm 4-bump Wafer-Level Chip-Scale Package (WLCSP).
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Applications
Mobile Devices and Smart Phones Portable Media Devices Ultra-Portable / Mobile Computing Advanced Notebook, UMPC, MID Portable Medical Devices GPS and Navigation Equipment
Ordering Information
Part Number
FPF1205UCX FPF1206UCX
Top Marking
QK QL
Switch (Typical) at 3.3VIN
75mΩ 75mΩ
Output Discharge
NA 65Ω
ON Pin Activity
Active HIGH Active HIGH
tR
110µs 110µs
Package
4-Ball WLCSP, 0.76mm x 0.76mm, 0.4mm Pitch
© 2010 Fairchild Semiconductor Corporation FPF1205 / FPF1206 • Rev. 1.0.0
www.fairchildsemi.com
FPF1205 / FPF1206 — IntelliMAX™ Advanced Load Switch
Application Diagram
Figure 1. Typical Application Notes: 1. CIN=1μF, X5R, 0603 (for example, Murata GRM185R60J105KE26). 2. COUT=0.1μF, X5R, 0805 (for example, Murata GRM216R61A105KA01).
Functional Block Diagram
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VIN
VOUT
FPF1205/06
ON
CONTROL LOGIC
Turn-On Slew Rate Controlled Driver Output Discharge (Optional)
ESD Protection
GND
Figure 2. Functional Block Diagram (Output Discharge for FPF1206 Only)
© 2010 Fairchild Semiconductor Corporation FPF1205 / FPF1206 • Rev. 1.0.0
www.fairchildsemi.com 2
FPF1205 / FPF1206 — IntelliMAX™ Advanced Load Switch
Pin Configurations
Figure 3. WLCSP Bumps Facing Up (Top View)
Figure 4. WLCSP Bumps Facing Down (Bottom View)
VOUT GND
A1
A2
VIN ON
VIN ON
A2
A1
VOUT GND
B1
B2
B2
B1
Figure 5. Pin Assignments (Top View)
Figure 6. Pin Assignments (Bottom View)
Pin Definitions
Pin #
A1 A2 B1 B2
Name
VOUT VIN GND ON
Description
Switch Output Supply Input, Input to the power switch Ground ON/OFF control, active HIGH
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