Click here to ask about the production status of specific part numbers. MAX16161/MAX16162 nanoPower Supply Supervisors with Glitch- Free Power-Up General Description Benefits and Features The MAX16161/MAX16162 are ultra-low current, single- No Powerup Glitch: (See Reliable Supervisor for Low- channel supervisory ICs. The devices monitor the power Voltage Processor Cores) supply voltage and assert a reset when the input voltage 825nA (typ) Quiescent Current Extends Battery Life falls below the reset threshold. After the monitoring volt- Positive and Negative Level-Triggered MR Input age rises above the factory-set threshold voltage (V ), Options (MAX16161) TH the reset output remains asserted for the reset timeout MR Debounce Circuitry (MAX16161) period and then deasserts, allowing the target microcon- Separate V and V Inputs (MAX16162) CC IN troller or microprocessor to leave the reset state and begin Multiple Available Reset Timeout Periods operating. Threshold Voltage Options 1.7V to 4.85V (MAX16161) Unlike conventional supervisors, which are unable to con- 0.6V to 4.85V (MAX16162) trol the reset output state when V is very low, the CC MAX16161/MAX16162 reset output is guaranteed to re- 4-Bump WLP and 4-Pin SOT23 Packages main asserted until after a valid V is achieved. This -40C to +125C Operating Temperature Range CC is especially important to avoid low-voltage cores leaving Ordering Information appears at end of data sheet. the reset state during power-up or power-down. This also improves performance when using the MAX16161/ Typical Application Circuit MAX16162 as simple power supply sequencers, because the devices will never cause a transient enable of a down- VCC stream power supply due to output glitches. The MAX16161 features a manual reset (MR) input that 1.7V TO 5.5V asserts a reset when it receives an appropriate input sig- nal, which may be either active-low or active-high, de- 10k pending on the option. The MAX16162 has no MR input. VCC Instead, it has separate V and V pins, allowing CC IN RST threshold voltages as low as 0.6V. The reset output is ac- tive-low open-drain, and the MAX16161/MAX16162 offer 0.1F MAX16162 multiple available reset timeout period options. LDO The MAX16161/MAX16162 are specified over the -40C OR GND to +125C temperature range and are available in tiny, V IN DC-DC VOUT CONVERTER 1.06mm x 0.73mm, 4-bump WLP and 4-pin SOT23 pack- ages. 0.1F Applications Low-Voltage Microcontrollers and Microprocessors Portable/Battery-Powered Equipment V MINIMUM CC e-Readers/Tablets VCC Wearable/Portable Accessories Smart Phones V + V TH HYS VIN tRP RST RESET STAYS LOW DURING SUPPLY RAMP. NO UNDEFINED REGION - NO GLITCH 19-101083 Rev 1 6/21MAX16161/MAX16162 nanoPower Supply Supervisors with Glitch-Free Power-Up TABLE OF CONTENTS General Description 1 Applications 1 Benefits and Features 1 Typical Application Circuit . 1 Absolute Maximum Ratings 5 Package Information . 5 WLP . 5 SOT23 . 5 Electrical Characteristics . 5 Typical Operating Characteristics 7 Pin Configurations . 9 MAX16161 4-Bump WLP . 9 MAX16161 4-Pin SOT23 10 MAX16162 4-Bump WLP 10 MAX16162 4-Pin SOT23 10 Pin Description 10 Functional Diagrams 11 Detailed Description 12 MAX16161 V Threshold . 12 CC MAX16161 Manual Reset Input . 12 Manual Reset Input Configurations 12 MAX16162 V Threshold . 13 IN Reset Output . 13 Glitch-Free Power-Up/-Down . 13 Applications Information . 14 Power Supply Bypassing and Grounding 14 Configuration Tables . 14 Selector Guide 16 Typical Application Circuits . 17 Typical Application Circuit . 17 Reliable Supervisor for Low-Voltage Processor Cores . 17 Simple Power Supply Sequencer 18 Ordering Information 18 Revision History . 19 www.maximintegrated.com Maxim Integrated 2