TPS60242

Features:

Wide Input Voltage Range:
    1.8 V To 5.5 V for 2.7-V, 3-V, 3.3-V Output (TPS60240/2/3)
    2.7 V To 5.5 V for 5-V Output (TPS60241)
170-Vrms Zero Ripple Output:
    at 20 Hz to 10 MHz Bandwidth
Minimum Number of External Components
    No Inductors
    Only Small Ceramic Chip Capacitors
Up to 90% Efficiency
Regulated 3.3-V (TPS60240), 5-V (TPS60241),3-V (TPS60243), and 2.7-V (TPS60242) Output Voltage With ±2.5% Accuracy Over Load
Up to 25-mA Output Current
Shutdown Mode: 0.1 A Typical
Thermal Protection and Current Limit
 Microsmall 8-Pin MSOP Package
 EVM Available TPS60241EVM-194


Application

VCO and PLL Power for:
   PDA Phones
   Cellular Phones
   PCMCIA Modems
Smartcard Readers
Digital Cameras
MP3 Players
SIM Modules
Electronic Games
Memory Backup
Handheld Meters
Bias Supplies


Pinout




Specifications

Supply voltage, V_DD .  . . . . . .  . . . . .. . . . . . . . . . . . . . . 0.3 V to 6 V
Power dissipation, PD  . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Voltage EN . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 6 V
Voltage C₂, C₁ . . . . . . . 0.3 V to VI or 5.5 V, whichever is lowest
Voltage C₂₊, C₁₊ .. . .  0.3 V to V_I, V_O, or 5.5 V, whichever is lowest
Junction temperature, T_J .  . . .  . . . . . . . . . . . . . . . . . . . . . . . . 125°C
Storage temperature, T_stg . .  . .. . . . . . . . . . . . . . . 65°C to 150°C
Shortcircuit output current .  . .. . .  . . . . . . . . . . . . . . 80 mA maximum


Description

The TPS6024x is a switched capacitor voltage converter, ideally suited for VCO and PLL applications that require low noise and tight tolerances. TPS6024x's dual-cap design uses four ceramic capacitors to provide ultralow output ripple yet high efficiency, while eliminating the need for inefficient linear regulators.

A wide input supply voltage range of 2.7 V to 5.5 V makes the TPS6024x ideal for lithium-based battery applications. The TPS60240/2/3 operates down to 1.8 V, supporting a 3.3-V, 2.7-V, 3-V output from two-cell, nickel- or alkaline-based chemistries. The TPS6024x work equally well for low EMI dc/dc step-up conversion without the need for an inductor. The high switching frequency (typical 160 kHz) promotes the use of small surface-mount capacitors, saving board space.The converter's shutdown mode conserves battery energy.