Analog Devices Inc. ADM8830ACP-REEL7

Overview

ADM8830ACP-REEL7 from Analog Devices is a triple-output CMOS charge pump regulator designed specifically for color TFT LCD panels in mobile phones, generating +5.1 V (±2%), +15.3 V, and –10.2 V from a single 2.6–3.6 V input. It features scanning/blanking mode control, Green Idle™ oscillator enable, and internal LDO regulation for the 5.1 V output. Its primary system role is powering LCD controller logic (+5.1 V) and gate drivers (+15.3 V/–10.2 V).

For engineers reviewing the ADM8830ACP-REEL7 datasheet, ADM8830ACP-REEL7 pinout, ADM8830ACP-REEL7 application, or ADM8830ACP-REEL7 equivalent, key selection criteria include triple-rail voltage generation under dynamic load, power-mode switching via SCAN/BLANK, shutdown current <1 µA, transient response ≤5 µs, and LFCSP-20 package compatibility with handheld space constraints.

Technical Context

The ADM8830ACP-REEL7 integrates a 100 kHz internal oscillator for scanning mode and accepts external 1 kHz clock input during blanking mode to reduce quiescent current (70–140 µA vs. 150–400 µA). Its control logic sequences power-up so –10.2 V ramps before +15.3 V to prevent TFT panel latch-up.

It uses voltage doubling (VOUT), tripling (+15VOUT), and inverting (–10VOUT) charge pump topologies fed from a regulated +5.1 V rail. The LDO_ON/OFF pin enables bypass of the internal 5.1 V LDO to support external regulation, isolating the tripler/inverter section from LDO ripple.

Key Specifications

Pinout & Package

ADM8830ACP-REEL7 is packaged in a 20-lead Lead Frame Chip Scale Package (LFCSP, CP-20-1), 4 mm × 4 mm body, 0.65 mm pitch, with exposed thermal pad for enhanced thermal dissipation (θ_JA = 31°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple-output charge pump regulator applications.

Compared with MAX1605EEE+ and TPS65120RGTR, the ADM8830ACP-REEL7 uniquely combines triple-rail generation (+5.1 V/+15.3 V/–10.2 V), hardware-enforced power sequencing, and dual-clock adaptive efficiency-making it irreplaceable for space-constrained, battery-powered color TFT systems demanding both performance and ultra-low standby consumption.

Availability

ADM8830ACP-REEL7 is available at Aetrix Electronics and suitable for mobile phone TFT LCD power, handheld instrument display supply, and portable media player bias generation requiring stable component supply across extended product lifecycles.

Supply support for ADM8830ACP-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and consumer markets.

The ADM8830 belongs to Analog Devices' TFT LCD power management product line, engineered specifically to replace discrete charge pump + LDO solutions in battery-powered handheld displays with integrated sequencing, adaptive efficiency, and compact LFCSP packaging.

FAQ

What is the operating temperature range for the ADM8830ACP-REEL7?

The ADM8830ACP-REEL7 is rated for continuous operation from –40°C to +85°C, matching the industrial temperature grade specified in the ordering guide. This range is validated across all electrical parameters including output voltage accuracy, supply current, and transient response, making ADM8830ACP-REEL7 suitable for outdoor-use handheld devices and automotive infotainment displays.

How does the ADM8830ACP-REEL7 manage power sequencing between its three outputs?

The ADM8830ACP-REEL7 enforces strict hardware-based sequencing: the –10.2 V output ramps first, and the +15.3 V output is held off until –10.2 V reaches –3 V. This prevents gate oxide stress in TFT panels. The +5.1 V output rises independently but completes before the other rails stabilize. This behavior is intrinsic to ADM8830ACP-REEL7's internal control logic and requires no external timing components.

Can the ADM8830ACP-REEL7 operate without an external clock source?

Yes - the ADM8830ACP-REEL7 operates autonomously in scanning mode using its internal 100 kHz oscillator. An external clock is required only during blanking mode (SCAN/BLANK = low) to achieve ultra-low quiescent current. If blanking mode is unused, CLKIN may be left unconnected or tied to a fixed logic level, and ADM8830ACP-REEL7 will function fully in scanning-only operation.

What is the purpose of the LDO_ON/OFF pin on the ADM8830ACP-REEL7?

The LDO_ON/OFF pin on ADM8830ACP-REEL7 controls whether the internal LDO regulates the +5.1 V output. When high, the internal LDO is active; when low, it is disconnected, allowing an external LDO to regulate +5VOUT and feed its output back into +5VIN to drive the tripler and inverter stages. This provides flexibility for lower-noise or higher-efficiency external regulation in noise-sensitive applications.

Does the ADM8830ACP-REEL7 support automatic transition between scanning and blanking modes?

No - mode transition is controlled entirely by the logic level applied to the SCAN/BLANK pin. ADM8830ACP-REEL7 has no internal sensor or auto-detection; the host processor or display controller must assert high (scanning) or low (blanking) based on display activity. This gives system designers full deterministic control over power-state timing and avoids latency or misalignment with frame buffer updates.