TPL9032 Series300-mA High PSRR, Ultra-low Noise LDOPin Configuration and FunctionsTPL9032 Series 5-Pin SOT23 Package TPL9032 Series Top View 4-Pin DFN 1×1 Package Top View IN 1 5 OUT 4 3 IN EN Thermal GND 2 Pad OUT GND EN 3 4 NC 1 2 TPL9032 Series 4-Pin WLCSP Package Top View IN A1 A2 OUT EN B1 B2 GND Pin FunctionsPIN NUMBERNAMETYPEDESCRIPTIONSOT23-5DFN-4WLCSP-4 Regulator enable pin. Drive EN high to turn on the regulator; drive EN low to turn EN 3 3 B1 I off the regulator. For automatic startup, connect EN to IN directly. GND 2 2 B2 – Ground reference pin. Connect GND pin to PCB ground plane directly. IN 1 4 A1 I Input voltage pin. Bypass IN to GND with a 1 μF or greater capacitor. NC 4 – – – No connection. OUT 5 1 A2 O Regulated output voltage pin. Bypass OUT to GND with a 1 μF or greater capacitor. (1) Thermal Pad MUST be connected to PCB ground plane directly. www.3peakic.com.cnRev.A.17 / 19
